Create Lab6

.gitignore

@@ -1,4 +1,2 @@
 # Project exclude paths
-/out/
+/out/
-# Auto detect text files and perform LF normalization
-* text=auto

.idea/OOP_IO-2x_2023.iml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="openjdk-18" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

.idea/modules.xml

@@ -2,10 +2,7 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/OOP_IO-2x_2023.iml" filepath="$PROJECT_DIR$/.idea/OOP_IO-2x_2023.iml" />
+      <module fileurl="file://$PROJECT_DIR$/OOP_IO-2x_2023.iml" filepath="$PROJECT_DIR$/OOP_IO-2x_2023.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab1/lab1.iml" filepath="$PROJECT_DIR$/lab1/lab1.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab2/lab2.iml" filepath="$PROJECT_DIR$/lab2/lab2.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab3/lab3.iml" filepath="$PROJECT_DIR$/lab3/lab3.iml" />
     </modules>
   </component>
 </project>

.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>

.idea/vcs.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
 </project>

Lab5

@@ -0,0 +1,184 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+class Letter {
+    private char value;
+
+    public Letter(char value) {
+        this.value = value;
+    }
+
+    public char getValue() {
+        return value;
+    }
+}
+
+class Word {
+    private List<Letter> letters = new ArrayList<>();
+
+    public Word(String input) {
+        for (char c : input.toCharArray()) {
+            letters.add(new Letter(c));
+        }
+    }
+
+    public List<Letter> getLetters() {
+        return letters;
+    }
+
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        for (Letter letter : letters) {
+            sb.append(letter.getValue());
+        }
+        return sb.toString();
+    }
+}
+
+class PunctuationMark {
+    private char value;
+
+    public PunctuationMark(char value) {
+        this.value = value;
+    }
+
+    public char getValue() {
+        return value;
+    }
+}
+
+class Sentence {
+    private List<Object> elements = new ArrayList<>();
+
+    public Sentence(String input) {
+        StringBuilder sb = new StringBuilder();
+        for (char c : input.toCharArray()) {
+            if (Character.isLetterOrDigit(c)) {
+                sb.append(c);
+            } else {
+                if (sb.length() > 0) {
+                    elements.add(new Word(sb.toString()));
+                    sb.setLength(0);
+                }
+                elements.add(new PunctuationMark(c));
+            }
+        }
+        if (sb.length() > 0) {
+            elements.add(new Word(sb.toString()));
+        }
+    }
+
+    public List<Object> getElements() {
+        return elements;
+    }
+
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        for (Object element : elements) {
+            if (element instanceof Word) {
+                sb.append(((Word) element).toString());
+            } else {
+                sb.append(((PunctuationMark) element).getValue());
+            }
+        }
+        return sb.toString();
+    }
+}
+
+class Text {
+    private List<Sentence> sentences = new ArrayList<>();
+
+    public Text(String input) {
+        StringBuilder sb = new StringBuilder();
+        for (char c : input.toCharArray()) {
+            if (c == '.' || c == '?' || c == '!' || c == ',') {
+                sb.append(c);
+                sentences.add(new Sentence(sb.toString()));
+                sb.setLength(0);
+            } else {
+                sb.append(c);
+            }
+        }
+        if (sb.length() > 0) {
+            sentences.add(new Sentence(sb.toString()));
+        }
+    }
+
+    public List<Sentence> getSentences() {
+        return sentences;
+    }
+
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        for (Sentence sentence : sentences) {
+            sb.append(sentence.toString());
+        }
+        return sb.toString();
+    }
+}
+
+public class Lab5 {
+    public static void main(String[] args) {
+        int C17 = 2430 % 17;
+        System.out.println("\n---------------------------------------------------------------------------------------------------------------------");
+        System.out.println("  C17 = " + C17 + ", So, the task is:  delete all previous occurrences of the last letter of each word of the specified text.");
+        System.out.println("---------------------------------------------------------------------------------------------------------------------");
+
+        Scanner scanner = new Scanner(System.in);
+        boolean isDone = false;
+        while (!isDone) {
+            System.out.print("\nEnter a string or type 'q' to quit: ");
+            String input = scanner.nextLine().trim();
+            if (input.equals("q")) {
+                System.out.print("\n The work is completed.");
+                isDone = true;
+            } else if (input.isEmpty()) {
+                System.out.println("Error: Input string is empty. Please enter a non-empty string.");
+            } else {
+                try {
+                    StringBuilder sb = new StringBuilder(input);
+                    String[] words = sb.toString().split("\\s+");
+                    for (int i = 0; i < words.length; i++) {
+                        String word = words[i];
+                        char lastChar = word.charAt(word.length() - 1);
+                        if (!Character.isLetterOrDigit(lastChar)) {
+                            int lastLetterIndex = -1;
+                            for (int j = word.length() - 2; j >= 0; j--) {
+                                if (Character.isLetter(word.charAt(j))) {
+                                    lastLetterIndex = j;
+                                    break;
+                                }
+                            }
+                            if (lastLetterIndex != -1) {
+                                char lastLetter = word.charAt(lastLetterIndex);
+                                String newWord = "";
+                                for (int j = 0; j < word.length() - 1; j++) {
+                                    if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                                        newWord += word.charAt(j);
+                                    }
+                                }
+                                newWord += lastChar;
+                                words[i] = newWord;
+                            }
+                        } else {
+                            char lastLetter = lastChar;
+                            String newWord = "";
+                            for (int j = 0; j < word.length() - 1; j++) {
+                                if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                                    newWord += word.charAt(j);
+                                }
+                            }
+                            newWord += lastLetter;
+                            words[i] = newWord;
+                        }
+                    }
+                    System.out.print("\n Final string: ");
+                    System.out.println(String.join(" ", words));
+                } catch (Exception e) {
+                    System.out.println("An error occurred: " + e.getMessage());
+                }
+            }
+        }
+    }
+}

Lab6

@@ -0,0 +1,225 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.Comparator;
+
+class ToyRoom {
+
+    public static void variant() {
+        int C13 = 2430 % 13;
+        System.out.println("\n            ---------------------------------------------------------------------------------------------------------------------");
+        System.out.println("                          C13 = " + C13 + ", So, the task is:  Prepare the toy room for children of different age groups.");
+        System.out.println("            ---------------------------------------------------------------------------------------------------------------------");
+    }
+
+    private List<Toy> toys;
+
+    public ToyRoom() {
+        this.toys = new ArrayList<>();
+    }
+
+    public void addToy(Toy toy) {
+        toys.add(toy);
+    }
+
+    public void displayToys() {
+        System.out.println(" -------------------------------------------------------");
+        System.out.printf(" | %-20s | %-10s | %-15s |\n", "Name", "Price ($)", "Age Group");
+        System.out.println(" |----------------------|------------|-----------------|");
+        for (Toy toy : toys) {
+            System.out.printf(" | %-20s | %-10.2f | %-15s |\n", toy.name, toy.price, toy.ageGroup);
+        }
+        System.out.println(" -------------------------------------------------------");
+    }
+
+    public void sortToys(boolean ascending) {
+        if (ascending) {
+            toys.sort(Comparator.comparingDouble(Toy::getPrice));
+        } else {
+            toys.sort(Comparator.comparingDouble(Toy::getPrice).reversed());
+        }
+    }
+
+    public List<Toy> findToysByPriceRange(double minPrice, double maxPrice) {
+        List<Toy> foundToys = new ArrayList<>();
+        for (Toy toy : toys) {
+            if (toy.getPrice() >= minPrice && toy.getPrice() <= maxPrice) {
+                foundToys.add(toy);
+            }
+        }
+        return foundToys;
+    }
+
+    public void findToysByName(String name) {
+        List<Toy> foundToys = new ArrayList<>();
+        for (Toy toy : toys) {
+            if (toy.name.toLowerCase().contains(name.toLowerCase())) {
+                foundToys.add(toy);
+            }
+        }
+
+        if (!foundToys.isEmpty()) {
+            System.out.println("\n Toys with matching name \"" + name + "\":");
+            System.out.println(" -------------------------------------------------------");
+            System.out.printf(" | %-20s | %-10s | %-15s |\n", "Name", "Price ($)", "Age Group");
+            System.out.println(" |----------------------|------------|-----------------|");
+            for (Toy toy : foundToys) {
+                System.out.printf(" | %-20s | %-10.2f | %-15s |\n", toy.name, toy.price, toy.ageGroup);
+            }
+            System.out.println(" -------------------------------------------------------");
+        } else {
+            System.out.println(" No toys found with a matching name.");
+        }
+    }
+}
+
+
+abstract class Toy {
+    protected String name;
+    protected double price;
+    protected String ageGroup;
+
+    public Toy(String name, double price, String ageGroup) {
+        this.name = name;
+        this.price = price;
+        this.ageGroup = ageGroup;
+
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    @Override
+    public String toString() {
+        return name + " - $" + price + ageGroup;
+    }
+}
+
+class Car extends Toy {
+    public Car(String name, double price, String ageGroup) {
+        super(name, price, ageGroup);
+    }
+}
+
+class Doll extends Toy {
+    public Doll(String name, double price, String ageGroup) {
+        super(name, price, ageGroup);
+    }
+}
+
+class Ball extends Toy {
+    public Ball(String name, double price, String ageGroup) {
+        super(name, price, ageGroup);
+    }
+}
+
+class Cube extends Toy {
+    public Cube(String name, double price, String ageGroup) {
+        super(name, price, ageGroup);
+    }
+}
+
+public class Lab6 {
+    public static void main(String[] args) {
+        ToyRoom toyRoom = new ToyRoom();
+        ToyRoom.variant();
+
+        toyRoom.addToy(new Car("Small car 'Mcqueen'", 10.0, "1-3 years"));
+        toyRoom.addToy(new Car("Small Car 'Audi'", 12.0, "1-3 years"));
+        toyRoom.addToy(new Car("Medium Yellow Car", 15.0, "3-6 years"));
+        toyRoom.addToy(new Car("Medium Blue Car", 18.0, "3-6 years"));
+        toyRoom.addToy(new Car("Car on R/C", 30.0, "6-10 years"));
+        toyRoom.addToy(new Doll("Doll that can talk", 25.0, "1-3 years"));
+        toyRoom.addToy(new Doll("Doll 'Barbie'", 10.0, "3-6 years"));
+        toyRoom.addToy(new Doll("Bear Teddy", 14.5, "6-12 months"));
+        toyRoom.addToy(new Ball("Yellow Ball", 5.0, "6-12 months"));
+        toyRoom.addToy(new Ball("Big Blue Ball", 7.0, "1-3 years"));
+        toyRoom.addToy(new Ball("Football Ball", 12.5, "6-10 years"));
+        toyRoom.addToy(new Cube("Cubes with pictures", 6.5, "6-12 months"));
+        toyRoom.addToy(new Cube("Cubes with letters", 9.0, "3-6 years"));
+        toyRoom.addToy(new Cube("Rubik's Cube", 14.0, "6-10 years"));
+
+        boolean exit = false;
+        Scanner scanner = new Scanner(System.in);
+
+        while (!exit) {
+            System.out.println("\n Select an option:");
+            System.out.println("  1 - Display all toys;");
+            System.out.println("  2 - Find toy by price range;");
+            System.out.println("  3 - Sort toys by price;");
+            System.out.println("  4 - Find a toy by name;");
+            System.out.println("  Q - Quit;\n");
+
+            String option = scanner.nextLine();
+
+            switch (option.toLowerCase()) {
+                case "1":
+                    System.out.println(" Toys in the Toy Room:");
+                    toyRoom.displayToys();
+                    break;
+                case "2":
+                    System.out.print(" Enter the minimum price for the toy: ");
+                    double minPrice = scanner.nextDouble();
+                    scanner.nextLine();
+
+                    System.out.print(" Enter the maximum price for the toy: ");
+                    double maxPrice;
+                    do {
+                        maxPrice = scanner.nextDouble();
+                        scanner.nextLine();
+
+                        if (minPrice >= maxPrice) {
+                            System.out.println(" Error: The minimum price must be less than the maximum price. Please try again.");
+                            System.out.print(" Enter the maximum price for the toy: ");
+                        }
+                    } while (minPrice >= maxPrice);
+
+                    List<Toy> foundToys = toyRoom.findToysByPriceRange(minPrice, maxPrice);
+                    if (!foundToys.isEmpty()) {
+                        System.out.println("\n Found toys within the price range:");
+                        System.out.println(" -------------------------------------------------------");
+                        System.out.printf(" | %-20s | %-10s | %-15s |\n", "Name", "Price ($)", "Age Group");
+                        System.out.println(" |----------------------|------------|-----------------|");
+                        for (Toy toy : foundToys) {
+                            System.out.printf(" | %-20s | %-10.2f | %-15s |\n", toy.name, toy.price, toy.ageGroup);
+                        }
+                        System.out.println(" -------------------------------------------------------");
+                    } else {
+                        System.out.println("\n No toys found within the price range.");
+                    }
+                    break;
+
+                case "3":
+                    System.out.println(" Choose the sorting order:");
+                    System.out.println("  A - Ascending");
+                    System.out.println("  D - Descending");
+                    String sortOrder = scanner.nextLine();
+
+                    boolean ascending = true;
+                    if (sortOrder.equalsIgnoreCase("D")) {
+                        ascending = false;
+                    }
+
+                    toyRoom.sortToys(ascending);
+                    System.out.println("\n Toys in the Toy Room after sorting:");
+                    toyRoom.displayToys();
+                    break;
+
+                case "4":
+                    System.out.print(" Enter the toy name: ");
+                    String toyName = scanner.nextLine();
+
+                    toyRoom.findToysByName(toyName);
+                    break;
+
+                case "q":
+                    exit = true;
+                    System.out.println(" Program exited. Thank you!");
+                    break;
+                default:
+                    System.out.println(" Invalid option. Please try again.");
+            }
+        }
+    }
+}

README.md

@@ -1,2 +0,0 @@
-# Laboratory OOP - IO-2x - 2023
-Antonenko Violetta

lab1 fedoniuk

@@ -0,0 +1,96 @@
+import java.util.Scanner;
+
+public class lab1 {
+    public static void main(String[] args) {
+        int C2, C3, C5;
+        var C7 = 0;
+
+        Scanner id = new Scanner(System.in);
+        System.out.print("Enter the student's ID number: ");
+        int idbook = id.nextInt();
+
+        C2 = idbook % 2;
+        C3 = idbook % 3;
+        C5 = idbook % 5;
+        C7 = idbook % 7;
+
+        String[] oper1 = {"+", "-"};
+        String[] oper2 = {"*", "/", "%", "+", "-"};
+        String[] oper3 = {"byte", "short", "int", "long", "char", "float", "double"};
+
+        int C = C3;
+
+        String O1 = oper1[C2];
+        String O2 = oper2[C5];
+        String O3 = oper3[C7];
+
+        System.out.println("C2 is: " + C2 + ", operation is: " + O1);
+        System.out.println("C3 = " + C);
+        System.out.println("C5 is: " + C5 + ", operation is: " + O2);
+        System.out.println("C7 is: " + C7 + ", Type of indexes i and j is: " + O3);
+
+        double i = 0;
+        double j = 0;
+        System.out.println("\nEnter a values for lower limits (i and j) in the "+ O3+" type: ");
+        switch (O3) {
+            case "byte" -> {
+                i = id.nextByte();
+                j = id.nextByte();
+            }
+            case "short" -> {
+                i = id.nextShort();
+                j = id.nextShort();
+            }
+            case "int" -> {
+                i = id.nextInt();
+                j = id.nextInt();
+            }
+            case "long" -> {
+                i = id.nextLong();
+                j = id.nextLong();
+            }
+            case "char" -> {
+                i = id.next().charAt(0);
+                j = id.next().charAt(0);
+            }
+            case "float" -> {
+                i = id.nextFloat();
+                j = id.nextFloat();
+            }
+            case "double" -> {
+                i = id.nextDouble();
+                j = id.nextDouble();
+            }
+        }
+
+        System.out.println("The value of the created variables is: " + i + " and " + j);
+        System.out.println("Enter values for top limits (n and m):");
+        int n, m;
+        n = id.nextInt();
+        m = id.nextInt();
+
+        double sum = 0, res = 0, res2 = 0;
+
+        if ((O1.equals("-") && i + n >= C && i <= C) || i > n || j > m || (C == 0 && i == 0)) {
+            System.out.println("Incorrect input, try another values");
+        } else {
+            for (double a = i; a <= n; a++) {
+                for (double b = j; b <= m; b++) {
+                    switch (O1) {
+                        case "+" -> res = a + C;
+                        case "-" -> res = a - C;
+                    }
+                    switch (O2) {
+                        case "+" -> res2 = a + b;
+                        case "-" -> res2 = a - b;
+                        case "*" -> res2 = a * b;
+                        case "/" -> res2 = a / b;
+                        case "%" -> res2 = a % b;
+                    }
+                    sum += res2 / res;
+                }
+            }
+            System.out.println("Sum is: " + sum);
+        }
+    }
+}

lab1/FunctionCalculator/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab1/FunctionCalculator/.idea/.name

@@ -1 +0,0 @@
-Main.java

lab1/FunctionCalculator/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab1/FunctionCalculator/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/FunctionCalculator.iml" filepath="$PROJECT_DIR$/FunctionCalculator.iml" />
-    </modules>
-  </component>
-</project>

lab1/FunctionCalculator/src/Main.java

@@ -1,51 +0,0 @@
-import java.util.Scanner;
-public class Main {
-    public static void main(String[] args) {
-        //C2 = 2501 % 2 = 1, і операція O1 буде відніманням (-).
-        //C3 = 2501 % 3 = 2
-        //C5 = 2501 % 5 = 1, і операція O2 буде діленням (/).
-        //C7 = 2501 % 7 = 4, тип індексів i та j буде char.
-        double result = 0;  // результат
-        char i, j;
-        char operation1 = '-';
-        double constant = 2.0;
-        Scanner scanner = new Scanner(System.in);
-        System.out.print("Введіть значення n: ");
-        int n = scanner.nextInt();
-        System.out.print("Введіть значення m: ");
-        int m = scanner.nextInt();
-
-        // Обчислення значення функції S
-        for (i = 'a'; i <= 'a' + n - 1; i++) {
-            for (j = 'b'; j <= 'b' + m - 1; j++) {
-                try {
-                    double value = (double) i / applyOperation(j, operation1, constant);
-                    result += value;
-                } catch (ArithmeticException e) {
-                    System.out.println("Ділення на нуль: " + e.getMessage());
-                } catch (Exception e) {
-                    System.out.println("Виникла помилка: " + e.getMessage());
-                }
-            }
-        }
-
-        // Виведення результату
-        System.out.println("Результат: " + result);
-    }
-
-    // Метод, який застосовує операцію О1 до двох чисел
-    public static double applyOperation(char j, char operation, double constant) throws Exception {
-        switch (operation) {
-            case '-':
-                return (double) j - constant;
-            case '/':
-                if (constant == 0.0) {
-                    throw new ArithmeticException("C не може бути рівним нулю");
-                } else {
-                    return (double) j / constant;
-                }
-            default:
-                throw new Exception("Непідтримувана операція: " + operation);
-        }
-    }
-}

lab1/lab1.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/FunctionCalculator/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab2

@@ -0,0 +1,76 @@
+import java.util.Scanner;
+import java.util.Random;
+
+public class Lab2 {
+    public static void main(String[] args) {
+        int C5, C11, C7;
+        int idbook = 2430;
+
+        C5 = idbook % 5;
+        C7 = idbook % 7;
+        C11 = idbook % 11;
+
+        System.out.println("C5 = " + C5 + " - Action between matrix is: C=a×B, a - const");
+        System.out.println("C7 = " + C7 + " - The matrix elements type is: byte");
+        System.out.println("C11 = " + C11 + " - The action with matrix C is: Find the matrix elements' average value");
+
+        Scanner sc = new Scanner(System.in);
+        System.out.print("\n Enter the number of rows: ");
+        int rows = sc.nextInt();
+        System.out.print(" Enter the number of columns: ");
+        int cols = sc.nextInt();
+        int min = 0;
+        int max = 0;
+        boolean valid = false;
+        while (!valid) {
+            System.out.print("\n Enter the minimum value of the matrix numbers (-128 to 127): ");
+            min = sc.nextInt();
+            System.out.print(" Enter the maximum value of the matrix numbers (-128 to 127): ");
+            max = sc.nextInt();
+            if (min >= -128 && max <= 127 && min < max) {
+                valid = true;
+            } else {
+                System.out.println("\nInvalid input. Please enter the values again.");
+            }
+        }
+        byte[][] matrix = new byte[rows][cols];
+        Random rand = new Random();
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < cols; j++) {
+                matrix[i][j] = (byte) (rand.nextInt(max - min + 1) + min);
+            }
+        }
+        System.out.println("\nThe matrix is:");
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < cols; j++) {
+                System.out.printf(" %-5d", matrix[i][j]);
+            }
+            System.out.println();
+        }
+
+        System.out.print("\nEnter the constant to multiply the matrix by: ");
+        int constant = sc.nextInt();
+        byte[][] multipliedMatrix = new byte[rows][cols];
+        System.out.println(" The matrix multiplied by " + constant + " is:");
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < cols; j++) {
+                multipliedMatrix[i][j] = (byte) (matrix[i][j] * constant);
+                System.out.printf(" %-5d", multipliedMatrix[i][j]);
+            }
+            System.out.println();
+        }
+
+        System.out.println("\n Press 'enter' to search for the average value of the matrix.");
+        sc.nextLine();
+        sc.nextLine();
+        int sum = 0;
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < cols; j++) {
+                sum += multipliedMatrix[i][j];
+            }
+        }
+        double average = (double) sum / (rows * cols);
+        System.out.println("The average value of the multiplied matrix is: " + average);
+    }
+}
+

lab2/Matrix/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab2/Matrix/.idea/.name

@@ -1 +0,0 @@
-Main.java

lab2/Matrix/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab2/Matrix/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/Matrix.iml" filepath="$PROJECT_DIR$/Matrix.iml" />
-    </modules>
-  </component>
-</project>

lab2/Matrix/Matrix.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab2/Matrix/src/Main.java

@@ -1,58 +0,0 @@
-import java.util.Arrays;
-
-public class Main {
-    public static void main(String[] args) {
-        byte[][] matrix = {{4, 7, 3}, {4, 7, 6}, {7, 10, 9}};
-
-        //C5 = 2501 mod 5 = 1, тому C = B^T (транспонування матриці)
-        //C7 = 2501 mod 7 = 1, тому тип елементів матриці має бути byte
-        //C11 = 2501 mod 11 = 10, тому треба знайти середнє значення елементів матриці
-
-        // Виконуємо дію з матрицею: транспонування матриці B
-        byte[][] transposedMatrix = transposeMatrix(matrix);
-        System.out.println("Transposed matrix: ");
-        printMatrix(transposedMatrix);
-
-        // Виконуємо дію з матрицею C: знаходимо середнє значення елементів матриці
-        double average = calculateAverage(transposedMatrix);
-        System.out.println("Cереднє значення елементів матриці: " + average);
-    }
-
-    // Метод для транспонування матриці
-    private static byte[][] transposeMatrix(byte[][] matrix) {
-        int rows = matrix.length;
-        int columns = matrix[0].length;
-
-        byte[][] transposedMatrix = new byte[columns][rows];
-
-        for (int i = 0; i < rows; i++) {
-            for (int j = 0; j < columns; j++) {
-                transposedMatrix[j][i] = matrix[i][j];
-            }
-        }
-
-        return transposedMatrix;
-    }
-
-    // Метод для знаходження середнього значення елементів матриці
-    private static double calculateAverage(byte[][] matrix) {
-        int rows = matrix.length;
-        int columns = matrix[0].length;
-
-        int sum = 0;
-        for (int i = 0; i < rows; i++) {
-            for (int j = 0; j < columns; j++) {
-                sum += matrix[i][j];
-            }
-        }
-
-        return (double) sum / (rows * columns);
-    }
-
-    // Метод для виведення матриці на екран
-    private static void printMatrix(byte[][] matrix) {
-        for (byte[] row : matrix) {
-            System.out.println(Arrays.toString(row));
-        }
-    }
-}

lab2/lab2.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/Matrix/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab3

@@ -0,0 +1,63 @@
+import java.util.Scanner;
+
+public class Lab5 {
+    public static void main(String[] args) {
+
+        int C17 = 2430 % 17;
+        System.out.println("\n---------------------------------------------------------------------------------------------------------------------");
+        System.out.println("  C17 = " + C17 + ", So, the task is:  delete all previous occurrences of the last letter of each word of the specified text");
+        System.out.println("---------------------------------------------------------------------------------------------------------------------");
+
+        Scanner scanner = new Scanner(System.in);
+        String input = null;
+        while (input == null || input.isEmpty()) {
+            System.out.print("\nEnter a string: ");
+            input = scanner.nextLine();
+        }
+        try {
+            StringBuilder sb = new StringBuilder(input);
+            String[] words = sb.toString().split("\\s+");
+            for (int i = 0; i < words.length; i++) {
+                String word = words[i];
+                char lastChar = word.charAt(word.length() - 1);
+                if (!Character.isLetterOrDigit(lastChar)) {
+                    // Last character is a punctuation mark
+                    int lastLetterIndex = -1;
+                    for (int j = word.length() - 2; j >= 0; j--) {
+                        if (Character.isLetter(word.charAt(j))) {
+                            lastLetterIndex = j;
+                            break;
+                        }
+                    }
+                    if (lastLetterIndex != -1) {
+                        char lastLetter = word.charAt(lastLetterIndex);
+                        String newWord = "";
+                        for (int j = 0; j < word.length() - 1; j++) {
+                            if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                                newWord += word.charAt(j);
+                            }
+                        }
+                        newWord += lastChar;
+                        words[i] = newWord;
+                    }
+                } else {
+                    // Last character is a letter or a digit
+                    char lastLetter = lastChar;
+                    String newWord = "";
+                    for (int j = 0; j < word.length() - 1; j++) {
+                        if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                            newWord += word.charAt(j);
+                        }
+                    }
+                    newWord += lastLetter;
+                    words[i] = newWord;
+                }
+            }
+            System.out.print("\nFinal string: ");
+            System.out.println(String.join(" ", words));
+        } catch (Exception e) {
+            System.out.println("An error occurred: " + e.getMessage());
+        }
+    }
+}
+

lab3/OperationsStrings/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab3/OperationsStrings/.idea/.name

@@ -1 +0,0 @@
-Main.java

lab3/OperationsStrings/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab3/OperationsStrings/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/OperationsStrings.iml" filepath="$PROJECT_DIR$/OperationsStrings.iml" />
-    </modules>
-  </component>
-</project>

lab3/OperationsStrings/OperationsStrings.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab3/OperationsStrings/src/Main.java

@@ -1,25 +0,0 @@
-import java.util.HashSet;
-
-public class Main {
-
-    public static void main(String[] args) {
-        String inputText = "Who are you? What is your name? Where are you from?";
-        int targetLength = 3;
-
-        try {
-            HashSet<String> uniqueWords = new HashSet<String>();
-            String[] sentences = inputText.split("[?]");
-            for (String sentence : sentences) {
-                String[] words = sentence.trim().split("\\s+");
-                for (String word : words) {
-                    if (word.length() == targetLength) {
-                        uniqueWords.add(word.toLowerCase());
-                    }
-                }
-            }
-            System.out.println("Unique words of length " + targetLength + " in the input text are: " + uniqueWords);
-        } catch (Exception e) {
-            System.out.println("An error occurred: " + e.getMessage());
-        }
-    }
-}

lab3/lab3.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/OperationsStrings/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab4

@@ -0,0 +1,115 @@
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.Scanner;
+
+public class Lab4 {
+
+    public static class Student {
+        private int grBook;
+        private String name;
+        private int age;
+        private double gpa;
+        private String faculty;
+
+        public Student(int grBook, String name, int age, double gpa, String faculty) {
+            this.grBook = grBook;
+            this.name = name;
+            this.age = age;
+            this.gpa = gpa;
+            this.faculty = faculty;
+        }
+
+        public int getGrBook() {
+            return grBook;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public int getAge() {
+            return age;
+        }
+
+        public double getGpa() {
+            return gpa;
+        }
+
+        public String getFaculty() {
+            return faculty;
+        }
+    }
+
+    public static void main(String[] args) {
+
+        int C11 = 2430 % 11;
+        System.out.println("\n  ----------------------------------------------------------------------------------------------------------");
+        System.out.println("          C11 = " + C11 + ", So, the task is:  Define the student class, which consists of at least 5 fields.");
+        System.out.println("  ----------------------------------------------------------------------------------------------------------");
+
+        Student[] students = {
+                new Student(1010, "Вікторія", 21, 84.6, "ФІОТ"),
+                new Student(2010, "Дарія", 20, 79.8, "РТФ"),
+                new Student(3010, "Анатолій", 19, 94.3, "ХТФ"),
+                new Student(4040, "Генадій", 22, 62.0, "ІХФ"),
+                new Student(5050, "Борис", 18, 89.1, "ФММ")
+        };
+
+        Scanner scanner = new Scanner(System.in);
+        boolean quit = false;
+        while (!quit) {
+
+            System.out.print("\nEnter the field to sort by (greed book, name, age, gpa, faculty) or enter 'quit' to exit: ");
+            String input = scanner.nextLine();
+
+            if (!input.equals("greed book") && !input.equals("name") && !input.equals("age") && !input.equals("gpa") && !input.equals("faculty") && !input.equals("quit")) {
+                System.out.println("Invalid field to sort by! Please enter 'grBook', 'name', 'age', 'gpa', or 'faculty'.");
+                continue;
+            }
+            if (input.equals("quit")) {
+                quit = true;
+                System.out.println("Thank you for using my program:)");
+                continue;
+            }
+
+            String field = input;
+            System.out.print("Enter the sort order (asc or desc): ");
+            String order = scanner.nextLine();
+
+            if (!order.equals("asc") && !order.equals("desc")) {
+                System.out.println("Invalid sort order! Please enter 'asc' or 'desc'.");
+                continue;
+            }
+
+            Comparator<Student> comparator = null;
+            switch (field) {
+                case "greed book":
+                    comparator = Comparator.comparingInt(Student::getGrBook);
+                    break;
+                case "name":
+                    comparator = Comparator.comparing(Student::getName);
+                    break;
+                case "age":
+                    comparator = Comparator.comparingInt(Student::getAge);
+                    break;
+                case "gpa":
+                    comparator = Comparator.comparingDouble(Student::getGpa);
+                    break;
+                case "faculty":
+                    comparator = Comparator.comparing(Student::getFaculty);
+                    break;
+            }
+            if (order.equals("desc")) {
+                comparator = comparator.reversed();
+            }
+            Arrays.sort(students, comparator);
+
+            System.out.println("\nSorted by " + field + " (in " + order + "ending order):");
+            System.out.println(String.format("%n%-15s | %-20s | %-4s | %-4s | %-10s", "Greed book", "Name", "Age", "GPA", " Faculty"));
+            System.out.println("----------------------------------------------------------------");
+            for (Student student : students) {
+                System.out.println(String.format("%-15d | %-20s | %-4d | %-3.1f | %-10s", student.getGrBook(), student.getName(), student.getAge(), student.getGpa(), student.getFaculty()));
+            }
+        }
+    }
+}

lab4/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab4/.idea/lab4.iml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab4/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/lab4.iml" filepath="$PROJECT_DIR$/.idea/lab4.iml" />
-    </modules>
-  </component>
-</project>

lab4/.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
-  </component>
-</project>

lab4/EducationalInstitution/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab4/EducationalInstitution/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab4/EducationalInstitution/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/EducationalInstitution.iml" filepath="$PROJECT_DIR$/EducationalInstitution.iml" />
-    </modules>
-  </component>
-</project>

lab4/EducationalInstitution/EducationalInstitution.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab4/untitled/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab4/untitled/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab4/untitled/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
-    </modules>
-  </component>
-</project>

lab4/untitled/src/Main.java

@@ -1,56 +0,0 @@
-import java.util.*;
-
-public class Main {
-    public static void main(String[] args) {
-        List<SeaShip> ships = createList();
-
-        printList(ships);
-
-        ships = sortList(ships);
-
-        System.out.println("==============================");
-
-        printList(ships);
-    }
-
-    private static ArrayList<SeaShip> createList() {
-        ArrayList<SeaShip> ships = new ArrayList<>();
-        Random random = new Random();
-
-        for (int i = 0; i < 10; i++)
-            ships.add(new SeaShip("name" + (i + 1), "class" + (i + 1), "type" + (i + 1),
-                    random.nextInt(10000) + 1000, random.nextDouble() * 100 + 20,
-                    random.nextInt(10000) + 1000, random.nextDouble() * 100));
-
-//        ships.add(new SeaShip("nameA", "classA", "typeA",
-//                random.nextInt(10000) + 1000, 100d,
-//                random.nextInt(10000) + 1000, 120d));
-//        ships.add(new SeaShip("nameA", "classA", "typeA",
-//                random.nextInt(10000) + 1000, 100d,
-//                random.nextInt(10000) + 1000, 130d));
-//        ships.add(new SeaShip("nameA", "classA", "typeA",
-//                random.nextInt(10000) + 1000, 100d,
-//                random.nextInt(10000) + 1000, 140d));
-//        ships.add(new SeaShip("nameA", "classA", "typeA",
-//                random.nextInt(10000) + 1000, 120d,
-//                random.nextInt(10000) + 1000, 120d));
-//        ships.add(new SeaShip("nameA", "classA", "typeA",
-//                random.nextInt(10000) + 1000, 120d,
-//                random.nextInt(10000) + 1000, 100d));
-
-        return ships;
-    }
-
-    private static List<SeaShip> sortList(List<SeaShip> list) {
-        Comparator<SeaShip> comparator = Comparator.comparing(SeaShip::getLength).reversed()
-                .thenComparing(SeaShip::getMaxSpeed);
-
-        list.sort(comparator);
-
-        return list;
-    }
-
-    private static void printList(List<SeaShip> list) {
-        list.forEach(System.out::println);
-    }
-}

lab4/untitled/src/SeaShip.java

@@ -1,86 +0,0 @@
-
-public class SeaShip {
-    private String name;
-    private String shipClass;
-    private String type;
-    private Integer weight;
-    private Double length;
-    private Integer power;
-    private Double maxSpeed;
-
-    public SeaShip(String name, String shipClass, String type,
-                   Integer weight, Double length, Integer power, Double maxSpeed) {
-        this.name = name;
-        this.shipClass = shipClass;
-        this.type = type;
-        this.weight = weight;
-        this.length = length;
-        this.power = power;
-        this.maxSpeed = maxSpeed;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public String getShipClass() {
-        return shipClass;
-    }
-
-    public void setShipClass(String shipClass) {
-        this.shipClass = shipClass;
-    }
-
-    public String getType() {
-        return type;
-    }
-
-    public void setType(String type) {
-        this.type = type;
-    }
-
-    public Integer getWeight() {
-        return weight;
-    }
-
-    public void setWeight(Integer weight) {
-        this.weight = weight;
-    }
-
-    public Double getLength() {
-        return length;
-    }
-
-    public void setLength(Double length) {
-        this.length = length;
-    }
-
-    public Integer getPower() {
-        return power;
-    }
-
-    public void setPower(Integer power) {
-        this.power = power;
-    }
-
-    public Double getMaxSpeed() {
-        return maxSpeed;
-    }
-
-    public void setMaxSpeed(Double maxSpeed) {
-        this.maxSpeed = maxSpeed;
-    }
-
-    @Override
-    public String toString() {
-        return "Sea ship '" + name + "', class: " + shipClass + ", type: " + type + ".\n" +
-                "Weight: " + weight + "\n" +
-                "Length: " + length + "\n" +
-                "Engine power: " + power + "\n" +
-                "Max speed: " + maxSpeed + "\n";
-    }
-}

lab4/untitled/untitled.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab5/untitled/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab5/untitled/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab5/untitled/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
-    </modules>
-  </component>
-</project>

lab5/untitled/src/Main.java

@@ -1,166 +0,0 @@
-import java.util.HashSet;
-
-public class Main {
-
-    public static void main(String[] args) {
-        String inputText = "Раз два три, літо прийди! По ООП сто балів захвати. ім'я запише без апострофу, ех"; //вход даних, текст
-        int targetLength = 3; //змінна, кількість літер в слові
-
-        try {
-            TextProcessor textProcessor = new TextProcessor();
-            HashSet<Word> uniqueWords = textProcessor.findUniqueWordsWithLength(inputText, targetLength);
-            System.out.println("Unique words of length " + targetLength + " in the input text are: " + uniqueWords);// вивод повідомлення, що містить довжину та унікальні слова змінної
-        } catch (Exception e) {
-            System.out.println("An error occurred: " + e.getMessage());//вивиод помилки
-        }
-    }
-}
-
-class Letter {
-    private char value;
-
-    public Letter(char value) {
-        this.value = value;
-    }
-
-    public char getValue() {
-        return value;
-    }
-
-    public void setValue(char value) {
-        this.value = value;
-    }
-}
-
-class Word {
-    private Letter[] letters;
-
-    public Word(Letter[] letters) {
-        this.letters = letters;
-    }
-
-    public Letter[] getLetters() {
-        return letters;
-    }
-
-    public void setLetters(Letter[] letters) {
-        this.letters = letters;
-    }
-
-    public int getLength() {
-        return letters.length;
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder sb = new StringBuilder();
-        for (Letter letter : letters) {
-            sb.append(letter.getValue());
-        }
-        return sb.toString();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj == null || getClass() != obj.getClass()) {
-            return false;
-        }
-        Word other = (Word) obj;
-        return this.toString().equals(other.toString());
-    }
-
-    @Override
-    public int hashCode() {
-        return this.toString().hashCode();
-    }
-}
-
-class Sentence {
-    private Word[] words;
-    private String punctuation;
-
-    public Sentence(Word[] words, String punctuation) {
-        this.words = words;
-        this.punctuation = punctuation;
-    }
-
-    public Word[] getWords() {
-        return words;
-    }
-
-    public void setWords(Word[] words) {
-        this.words = words;
-    }
-
-    public String getPunctuation() {
-        return punctuation;
-    }
-
-    public void setPunctuation(String punctuation) {
-        this.punctuation = punctuation;
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder sb = new StringBuilder();
-        for (Word word : words) {
-            sb.append(word.toString()).append(" ");
-        }
-        sb.append(punctuation);
-        return sb.toString();
-    }
-}
-
-class Text {
-    private Sentence[] sentences;
-
-    public Text(Sentence[] sentences) {
-        this.sentences = sentences;
-    }
-
-    public Sentence[] getSentences() {
-        return sentences;
-    }
-
-    public void setSentences(Sentence[] sentences) {
-        this.sentences = sentences;
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder sb = new StringBuilder();
-        for (Sentence sentence : sentences) {
-            sb.append(sentence.toString());
-        }
-        return sb.toString();
-    }
-}
-
-class TextProcessor {
-    public HashSet<Word> findUniqueWordsWithLength(String inputText, int targetLength) {
-        HashSet<Word> uniqueWords = new HashSet<>();
-        String[] sentenceStrings = inputText.split("[?]");
-        for (String sentenceString : sentenceStrings) {
-            String[] wordStrings = sentenceString.trim().split("\\s+");
-            for (String wordString : wordStrings) {
-                wordString = wordString.replaceAll("[\\t\\s]+", " "); // Заміна послідовності табуляцій та пробілів одним пробілом
-                wordString = wordString.replaceAll("[^\\p{L}\\s]", ""); // Вилучення розділових знаків
-                wordString = wordString.toLowerCase(); // Перетворення на нижній регістр
-                wordString = wordString.replace("’", ""); // Вилучення апострофів
-
-                if (wordString.length() == targetLength) {
-                    Letter[] letters = new Letter[wordString.length()];
-                    for (int i = 0; i < wordString.length(); i++) {
-                        letters[i] = new Letter(wordString.charAt(i));
-                    }
-                    Word word = new Word(letters);
-                    uniqueWords.add(word);
-                }
-            }
-        }
-        return uniqueWords;
-    }
-}

lab5/untitled/untitled.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab6/untitled/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

lab6/untitled/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

lab6/untitled/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
-    </modules>
-  </component>
-</project>

lab6/untitled/src/Main.java

@@ -1,159 +0,0 @@
-import java.util.Arrays;
-import java.util.Comparator;
-
-/**
- * Клас, що описує базовий рухомий склад залізничного транспорту.
- */
-class RollingStock {
-    private int number;
-
-    public RollingStock(int number) {
-        this.number = number;
-    }
-
-    public int getNumber() {
-        return number;
-    }
-}
-
-/**
- * Клас, що описує пасажирський вагон.
- */
-class PassengerCarriage extends RollingStock {
-    private int passengerCount;
-    private int comfortLevel;
-
-    public PassengerCarriage(int number, int passengerCount, int comfortLevel) {
-        super(number);
-        this.passengerCount = passengerCount;
-        this.comfortLevel = comfortLevel;
-    }
-
-    public int getPassengerCount() {
-        return passengerCount;
-    }
-
-    public int getComfortLevel() {
-        return comfortLevel;
-    }
-}
-
-/**
- * Клас, що описує вагон для багажу.
- */
-class BaggageCarriage extends RollingStock {
-    private int baggageCount;
-
-    public BaggageCarriage(int number, int baggageCount) {
-        super(number);
-        this.baggageCount = baggageCount;
-    }
-
-    public int getBaggageCount() {
-        return baggageCount;
-    }
-}
-
-/**
- * Клас, що описує пасажирський потяг.
- */
-class PassengerTrain {
-    private RollingStock[] rollingStock;
-
-    public PassengerTrain(RollingStock[] rollingStock) {
-        this.rollingStock = rollingStock;
-    }
-
-    public int getTotalPassengerCount() {
-        int totalPassengerCount = 0;
-        for (RollingStock stock : rollingStock) {
-            if (stock instanceof PassengerCarriage) {
-                PassengerCarriage carriage = (PassengerCarriage) stock;
-                totalPassengerCount += carriage.getPassengerCount();
-            }
-        }
-        return totalPassengerCount;
-    }
-
-    public int getTotalBaggageCount() {
-        int totalBaggageCount = 0;
-        for (RollingStock stock : rollingStock) {
-            if (stock instanceof BaggageCarriage) {
-                BaggageCarriage carriage = (BaggageCarriage) stock;
-                totalBaggageCount += carriage.getBaggageCount();
-            }
-        }
-        return totalBaggageCount;
-    }
-
-    public void sortByComfortLevel() {
-        Arrays.sort(rollingStock, new Comparator<RollingStock>() {
-            @Override
-            public int compare(RollingStock o1, RollingStock o2) {
-                if (o1 instanceof PassengerCarriage && o2 instanceof PassengerCarriage) {
-                    PassengerCarriage carriage1 = (PassengerCarriage) o1;
-                    PassengerCarriage carriage2 = (PassengerCarriage) o2;
-                    return carriage1.getComfortLevel() - carriage2.getComfortLevel();
-                }
-                return 0;
-            }
-        });
-    }
-
-    public RollingStock findCarriageByPassengerCountRange(int minPassengerCount, int maxPassengerCount) {
-        for (RollingStock stock : rollingStock) {
-            if (stock instanceof PassengerCarriage) {
-                PassengerCarriage carriage = (PassengerCarriage) stock;
-                if (carriage.getPassengerCount() >= minPassengerCount && carriage.getPassengerCount() <= maxPassengerCount) {
-                    return carriage;
-                }
-            }
-        }
-        return null;
-    }
-}
-
-/**
- * Головний клас програми.
- */
-public class Main {
-    public static void main(String[] args) {
-        // Створення вагонів потягу
-        RollingStock[] rollingStock = new RollingStock[5];
-        rollingStock[0] = new PassengerCarriage(1, 40, 3);
-        rollingStock[1] = new PassengerCarriage(2, 30, 2);
-        rollingStock[2] = new BaggageCarriage(3, 50);
-        rollingStock[3] = new PassengerCarriage(4, 20, 1);
-        rollingStock[4] = new PassengerCarriage(5, 35, 2);
-
-        // Створення пасажирського потягу
-        PassengerTrain train = new PassengerTrain(rollingStock);
-
-        // Розрахунок загальної кількості пасажирів та багажу в потязі
-        int totalPassengerCount = train.getTotalPassengerCount();
-        int totalBaggageCount = train.getTotalBaggageCount();
-        System.out.println("Total passenger count: " + totalPassengerCount);
-        System.out.println("Total baggage count: " + totalBaggageCount);
-
-        // Сортування вагонів за рівнем комфортності
-        train.sortByComfortLevel();
-        System.out.println("Sorted carriages by comfort level:");
-
-        for (RollingStock stock : rollingStock) {
-            if (stock instanceof PassengerCarriage) {
-                PassengerCarriage carriage = (PassengerCarriage) stock;
-                System.out.println("Carriage " + carriage.getNumber() + ", Comfort Level: " + carriage.getComfortLevel());
-            }
-        }
-
-        // Знаходження вагона з пасажирськими місцями в заданому діапазоні кількості пасажирів
-        int minPassengerCount = 25;
-        int maxPassengerCount = 40;
-        RollingStock foundCarriage = train.findCarriageByPassengerCountRange(minPassengerCount, maxPassengerCount);
-        if (foundCarriage != null) {
-            System.out.println("Found carriage with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + "): " + foundCarriage.getNumber());
-        } else {
-            System.out.println("No carriage found with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + ")");
-        }
-    }
-}

lab6/untitled/untitled.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

src/Main.java

@@ -0,0 +1,15 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println(args[1]);
+        System.out.println("Hello world!");
+//        System.out.println(1);
+    }
+
+    void myFunction() {
+
+    }
+
+    int myFunction2() {
+        return 1;
+    }
+}

src/encapsulationInheritancePolymorphism/Encapsulation.java

@@ -0,0 +1,20 @@
+package encapsulationInheritancePolymorphism;
+
+public class Encapsulation {
+    /*private*/ int field;
+    private int field2;
+//    int a = 1;
+
+    public void myMethodForTheField () {
+        System.out.println(field);
+    }
+
+    public void myMethodForTheField2 () {
+        System.out.println(field);
+    }
+
+    public void myMethodForTheFieldAndTheField2 () {
+        System.out.println(field);
+    }
+}
+

src/encapsulationInheritancePolymorphism/EncapsulationInheritancePolymorphism.java

@@ -0,0 +1,10 @@
+package encapsulationInheritancePolymorphism;
+
+public class EncapsulationInheritancePolymorphism {
+
+    public static void main(String[] args) {
+        int a = 1;
+//        var b = 2;
+//        System.out.println(b);
+    }
+}

src/encapsulationInheritancePolymorphism/Main.java

@@ -0,0 +1,14 @@
+package encapsulationInheritancePolymorphism;
+
+public class Main {
+    public static void main(String[] args) {
+        Student student = new Student();
+
+
+
+
+        //...
+
+        student.setFaculty("FPM", "MO-22");
+    }
+}

src/encapsulationInheritancePolymorphism/Student.java

@@ -0,0 +1,18 @@
+package encapsulationInheritancePolymorphism;
+
+public class Student {
+    private String name;
+    private String surname;
+    private String group;
+    private String faculty;
+
+
+    public String getName() {
+        return name;
+    }
+
+    public void setFaculty(String faculty, String group) {
+        this.faculty = faculty;
+        this.group = group;
+    }
+}

src/encapsulationInheritancePolymorphism/inheritance/ElectricEngine.java

@@ -0,0 +1,5 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+}

src/encapsulationInheritancePolymorphism/inheritance/Engine.java

@@ -0,0 +1,5 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class Engine {
+    private int power;
+}

src/encapsulationInheritancePolymorphism/inheritance/Main.java

@@ -0,0 +1,7 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class Main {
+    public static void main(String[] args) {
+        ElectricEngine electricEngine = new ElectricEngine();
+    }
+}

src/test/A.java

@@ -0,0 +1,13 @@
+package test;
+
+public class A {
+    /*private*/ int f/* = 3*/;
+
+    public int getF() {
+        return f;
+    }
+
+    public void setF(int f) {
+        this.f = f;
+    }
+}

src/test/Main.java

@@ -0,0 +1,15 @@
+package test;
+
+public class Main {
+    public static void main(String[] args) {
+        A a = new A();
+        System.out.println(a.getF());
+        a.setF(1);
+        System.out.println(a.getF());
+
+        System.out.println(a.f);
+
+        int[] array = {1, 2, 1};
+        System.out.println(array.length);
+    }
+}