Lab 2 formatting tweaks.

.gitignore

@@ -1,2 +0,0 @@
-# Project exclude paths
-/out/

.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

.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/OOP_IO-2x_2023.iml" filepath="$PROJECT_DIR$/OOP_IO-2x_2023.iml" />
-    </modules>
-  </component>
-</project>

.idea/uiDesigner.xml

@@ -1,124 +0,0 @@
-<?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 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

Java/lab_1/lab_1.java

@@ -0,0 +1,33 @@
+ package OOP.Java.lab_1;
+
+import java.util.Scanner;
+
+public class lab_1 {
+    
+    public static int protectedInput(String variableToRead, Scanner input) {
+        do {
+            try {
+                System.out.printf("Enter %s: ", variableToRead);
+                return input.nextInt();
+            } catch (Exception e) {
+                System.out.printf("%s must be an integer.\n", variableToRead.toUpperCase());
+                input.nextLine();
+            }
+        } while (true);
+    }
+
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+
+        final int n = protectedInput("n", input);
+        final int m = protectedInput("m", input);
+        final int a = protectedInput("a", input);
+        final int b = protectedInput("b", input);
+
+        input.close();
+
+        final float s = ((float) (b + m) / 2) * (m - b + 1) * (n - a + 1);
+
+        System.out.println("S = " + s);
+    }
+}

Java/lab_1/lab_1.kt

@@ -0,0 +1,23 @@
+package OOP.Java.lab_1
+
+fun protectedInput(variableName: String): Int {
+    do {
+        try {
+            print("Enter $variableName: ")
+            return readln().toInt()
+        } catch (e: Exception) {
+            println("${variableName.uppercase()} must be an integer!")
+        }
+    } while (true)
+}
+
+fun main() {
+    val n: Int = protectedInput("n")
+    val m: Int = protectedInput("m")
+    val a: Int = protectedInput("a")
+    val b: Int = protectedInput("b")
+
+    val s: Float = (b + m).toFloat() / 2 * (m - b + 1) * (n - a + 1)
+
+    println("S = $s")
+}

Java/lab_2/lab_2.java

@@ -0,0 +1,109 @@
+package OOP.Java.lab_2;
+
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Scanner;
+
+public class lab_2 {
+
+    public static short protectedInput(String inputPrompt, String errorMessage, Scanner input) {
+        short read_variable;
+
+        do {
+            try {
+                System.out.println();
+                System.out.print(inputPrompt);
+
+                read_variable = input.nextShort();
+                break;
+            } catch (Exception e) {
+                System.out.println(errorMessage);
+                input.nextLine();
+            }
+        } while (true);
+
+        return read_variable;
+    }
+
+    @NotNull
+    public static String format(int number) {
+        int width = String.valueOf(number).length() + 1;
+
+        return "|%" + width + "d ";
+    }
+
+    @Contract(pure = true)
+    public static double average(@NotNull short[] row) {
+        short sum = 0;
+
+        for (short element : row) {
+            sum += element;
+        }
+
+        return (double) sum / row.length;
+    }
+
+    public static void main(String[] args) {
+        short rows, columns;
+
+        Scanner input = new Scanner(System.in);
+
+        final short a = protectedInput("Input a constant to multiply a matrix by: ",
+                "A constant must be a short-data type integer, try again.", input);
+
+        System.out.println();
+        System.out.println("Input size of the matrix.");
+
+        do {
+            rows = protectedInput("Rows: ",
+                    "A number of rows must be a short-data type integer, try again.", input);
+        } while (rows <= 0);
+
+        do {
+            columns = protectedInput("Columns: ",
+                    "A number of columns must be a short-data type integer, try again.", input);
+        } while (columns <= 0);
+
+        input.close();
+
+        short[][] matrix_B = new short[rows][columns];
+
+        System.out.println();
+        System.out.println("Matrix B:");
+
+        String format = format(rows * columns);
+
+        for (short i = 0; i < rows; i++) {
+            for (short j = 0; j < columns; j++) {
+                matrix_B[i][j] = (short) ((i + 1) * (j + 1));
+
+                System.out.printf(format, matrix_B[i][j]);
+            }
+
+            System.out.println("|");
+        }
+
+        System.out.println();
+        System.out.println("Matrix a×B:");
+
+        format = format(rows * columns * a);
+
+        for (short i = 0; i < matrix_B.length; i++) {
+            for (short j = 0; j < matrix_B[i].length; j++) {
+                matrix_B[i][j] *= (a);
+
+                System.out.printf(format, matrix_B[i][j]);
+            }
+
+            System.out.println("|");
+        }
+
+        System.out.println();
+        System.out.println("Averages of each row:");
+
+        for (short[] row : matrix_B) {
+            System.out.println(average(row));
+        }
+    }
+}

Java/lab_3/lab_3.java

@@ -0,0 +1,57 @@
+package OOP.Java.lab_3;
+
+public class lab_3 {
+    static int maxStrLength;
+    static String result;
+    
+    public static void cSubUtil(StringBuilder stringbuilder, int leftBoundary, int rightBoundary) {
+        String string = stringbuilder.toString().toLowerCase().replaceAll("[^a-z]","");
+        // check if the indices lie in the range of string
+        // and also if it is palindrome
+        while (leftBoundary >= 0 && rightBoundary < string.length() && string.toLowerCase().charAt(leftBoundary) == string.toLowerCase().charAt(rightBoundary)) {
+            // expand the boundary
+            leftBoundary--;
+            rightBoundary++;
+        }
+        // if it's length is greater than maxStrLength update
+        // maxLength and result
+        if (rightBoundary - leftBoundary - 1 >= maxStrLength) {
+            result = string.substring(leftBoundary + 1, rightBoundary);
+            maxStrLength = rightBoundary - leftBoundary - 1;
+        }
+    }
+
+    public static int longestPalSubstr(StringBuilder string)
+    {
+        result = "";
+        maxStrLength = 1;
+        // for every index in the string check palindromes
+        // starting from that index
+        for (int i = 0; i < string.length(); i++) {
+            // check for odd length palindromes
+            cSubUtil(string, i, i);
+            // check for even length palindromes
+            cSubUtil(string, i, i + 1);
+        }
+        System.out.println("Longest palindrome substring is: " + compareStrings(string));
+        return compareStrings(string).length();
+    }
+
+    public static String compareStrings(StringBuilder builder) {
+        for (int leftBoundary = 0; leftBoundary <= builder.length(); leftBoundary++) {
+            for (int rightBoundary = builder.length(); rightBoundary >= leftBoundary; rightBoundary--) {
+                if (result.equals(builder.substring(leftBoundary, rightBoundary).toLowerCase().replaceAll("[^a-z]",""))) {
+                    return builder.substring(leftBoundary, rightBoundary);
+                }
+            }
+        }
+        return "";
+    }
+
+    public static void main(String[] args) {
+        StringBuilder stringToDetect = new StringBuilder("Eva, can I see bees in a cave?");
+
+        System.out.println("Initial string: " + stringToDetect);
+        System.out.println("Length is: " + longestPalSubstr(stringToDetect));
+    }
+}

Java/lab_4/Furniture.kt

@@ -0,0 +1,11 @@
+package OOP.Java.lab_4
+
+class Furniture(val name: String, val material: String, val price: Int, val length: Int, val width: Int, val height: Int) {
+    fun print(nameWidth: Int, materialWidth: Int, priceWidth: Int){
+        print("Furniture stats: {")
+        print("Name: ${this.name.padEnd(nameWidth)}   ")
+        print("Material: ${this.material.padEnd(materialWidth)}   ")
+        print("Price: ${(this.price.toString() + " cu").padEnd(priceWidth + 3)}   ")
+        print("Size: ${this.length}×${this.width}×${this.height}};\n")
+    }
+}

Java/lab_4/lab_4.kt

@@ -0,0 +1,26 @@
+package OOP.Java.lab_4
+
+fun main() {
+    val furnitureArray = arrayOf(
+        Furniture("Chair", "Wood", 10, 5, 5, 10),
+        Furniture("Counter-top", "Marble", 1_000, 10, 5, 1),
+        Furniture("Dinner table", "Glass", 500, 15, 10, 1),
+        Furniture("Office table", "Wood", 200, 10, 7, 1),
+        Furniture("Refrigerator", "Stainless steel", 20_000, 8, 4, 10)
+    )
+
+    val maxNameWidth = furnitureArray.maxWith(Comparator.comparingInt { it.name.length }).name.length
+    val maxMaterialWidth = furnitureArray.maxWith(Comparator.comparingInt { it.material.length }).material.length
+    val maxPriceWidth = furnitureArray.maxWith(Comparator.comparingInt { it.price }).price.toString().length
+
+    println("\nUnsorted array:")
+    for (item in furnitureArray) item.print(maxNameWidth, maxMaterialWidth, maxPriceWidth)
+
+    println("\nSorted alphabetically by name:")
+    furnitureArray.sortBy { it.name }
+    for (item in furnitureArray) item.print(maxNameWidth, maxMaterialWidth, maxPriceWidth)
+
+    println("\nSorted alphabetically by material:")
+    furnitureArray.sortBy { it.material }
+    for (item in furnitureArray) item.print(maxNameWidth, maxMaterialWidth, maxPriceWidth)
+}

Java/lab_5/Letter.kt

@@ -0,0 +1,23 @@
+package OOP.Java.lab_5
+
+/**
+ * A class representing a single letter in a word.
+ *
+ * @property character a character value of a Letter.
+ */
+class Letter(private val character: Char) {
+    override fun toString(): String {
+        return this.character.toString()
+    }
+
+    /**
+     * Indicates whether the two objects of class Letter are "equal".
+     *
+     * @param letter a letter to compare.
+     * @param ignoreCase if set to "true" will ignore the case of Letters compared.
+     * @return "true" if letters are equal and "false" if they aren't.
+     */
+    fun letterEquals(letter: Letter, ignoreCase: Boolean): Boolean {
+        return this.character.toString().equals(letter.toString(), ignoreCase)
+    }
+}

Java/lab_5/Punctuation.kt

@@ -0,0 +1,19 @@
+package OOP.Java.lab_5
+
+/**
+ * A class representing a punctuation mark following a word or a sentence.
+ *
+ * @property punctuationMark a [String] value of a punctuation mark.
+ */
+class Punctuation(var punctuationMark: String) {
+
+    init {
+        if (!"\\p{Punct}".toRegex().containsMatchIn(punctuationMark)) {
+            this.punctuationMark = ""
+        }
+    }
+
+    override fun toString(): String {
+        return punctuationMark
+    }
+}

Java/lab_5/Sentence.kt

@@ -0,0 +1,35 @@
+package OOP.Java.lab_5
+
+/**
+ * A class representing a single sentence is a text.
+ *
+ * @property sentenceArray a [Pair] of [Array]s of [Word] and [Punctuation] objects that make up a sentence.
+ *
+ * @constructor a primary constructor accepts a [Pair] of [Array]s of [Word] and [Punctuation] objects, a secondary one accepts a string representing the entire sentence.
+ */
+class Sentence(var sentenceArray: Pair<Array<Word>, Array<Punctuation>>) {
+
+    constructor(
+        sentenceString: String
+    ) : this(
+        Pair(
+            sentenceString.split("[\\p{Punct}\\s]+".toRegex()).filter { it.isNotEmpty() }.map { word -> Word(word) }.toTypedArray(),
+            sentenceString.split(" ").map { word -> Punctuation(word.last().toString()) }.toTypedArray()
+        )
+    )
+
+    /**
+     * Returns an array of all [Letter] objects in a sentence.
+     */
+    fun getAllLetters(): Array<Letter> {
+        var allLetters = arrayOf<Letter>()
+        this.sentenceArray.first.forEach { allLetters += it.letters }
+        return allLetters
+    }
+
+    override fun toString(): String {
+        var sentence = arrayOf<String>()
+        this.sentenceArray.first.indices.forEach {sentence += this.sentenceArray.first[it].toString() + this.sentenceArray.second[it].toString() }
+        return sentence.joinToString(" ")
+    }
+}

Java/lab_5/Text.kt

@@ -0,0 +1,83 @@
+package OOP.Java.lab_5
+
+/**
+ * A class representing the entire text.
+ *
+ * @property textArray a [Pair] of [Array]s of [Sentence] and [Punctuation] objects that make up a text.
+ *
+ * @constructor a primary constructor accepts a [Pair] of [Array]s of [Sentence] and [Punctuation] objects, a secondary one accepts a string representing the entire text.
+ */
+class Text(var textArray: Pair<Array<Sentence>, Array<Punctuation>>) {
+
+    constructor(
+        textString: String
+    ) : this(
+        Pair(
+            textString.split("[.!?] ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Sentence(sentence) }.toTypedArray(),
+            textString.split("(?<=[.!?]) ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Punctuation(sentence.last().toString()) }.toTypedArray()
+        )
+    )
+
+    /**
+     * Returns an array of all [Letter] objects in a sentence.
+     */
+    private fun getAllLetters(): Array<Letter> {
+        var allLetters = arrayOf<Letter>()
+        this.textArray.first.forEach { allLetters += it.getAllLetters() }
+        return allLetters
+    }
+
+    /**
+     * Searches for the longest palindromic substring in a given text.
+     *
+     * @return the longest palindromic substring found.
+     */
+    fun palindromeSearch(): String {
+        var result = "  "
+
+        val letters = this.getAllLetters()
+
+        for (leftBoundary in letters.indices) {
+            for (rightBoundary in letters.lastIndex downTo leftBoundary + 1) {
+                val subToC = letters.sliceArray(leftBoundary..rightBoundary)
+
+                if (subToC.first().letterEquals(subToC.last(), true) && this.checkReverse(subToC) && subToC.size > result.length) {
+                    result = subToC.joinToString("")
+                }
+            }
+        }
+
+        return result
+    }
+
+    /**
+     * Checks if a given substring is a palindrome.
+     *
+     * Is not case-sensitive.
+     *
+     * @param substring an [Array] of [Letter] objects representing a substring.
+     *
+     * @return "true" is a substring given is a palindrome, "false" if it isn't.
+     */
+    private fun checkReverse(substring: Array<Letter>): Boolean {
+        var leftBoundary = 0
+        var rightBoundary = substring.lastIndex
+        var result = false
+        val correction = substring.size % 2
+
+        while (leftBoundary < substring.size / 2 && rightBoundary >= substring.size / 2 + correction) {
+            leftBoundary++
+            rightBoundary--
+            result = substring[leftBoundary].letterEquals(substring[rightBoundary], true)
+        }
+
+        return result
+    }
+
+
+    override fun toString(): String {
+        var text = arrayOf<String>()
+        this.textArray.first.indices.forEach { text += this.textArray.first[it].toString() + this.textArray.second[it].toString() }
+        return text.joinToString(" ")
+    }
+}

Java/lab_5/Word.kt

@@ -0,0 +1,22 @@
+package OOP.Java.lab_5
+
+/**
+ * A class representing a single word is a sentence.
+ *
+ * @property letters an array of [Letter] objects that make up a word.
+ *
+ * @constructor a primary constructor accepts an array of [Letter] objects, a secondary one accepts a string representing the entire word.
+ */
+class Word(var letters: Array<Letter>) {
+
+    override fun toString(): String {
+        val wordString = StringBuilder()
+        this.letters.forEach { wordString.append(it) }
+
+        return wordString.toString()
+    }
+
+    constructor(
+        word: String
+    ) : this((word.toCharArray().map { letter -> Letter(letter) }).toTypedArray())
+}

Java/lab_6/Album.kt

@@ -0,0 +1,33 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents an album by a specific artist, containing multiple tracks.
+ *
+ * @property albumName The name of the album.
+ * @property artist The artist or band associated with the album.
+ * @property tracks An [Array] of tracks included on the album.
+ */
+class Album(val albumName: String, val artist: String, val tracks: Array<Track>) {
+
+    /**
+     * Returns an array of tracks within the specified duration range.
+     */
+    fun tracksInDurationRange(durationRange: ClosedRange<Duration>): Array<Track> {
+        return this.tracks.filter { it.duration in durationRange }.toTypedArray()
+    }
+
+    /**
+     * Returns the total duration of all tracks on the album.
+     */
+    fun totalDuration(): Duration {
+        var totalDuration: Duration = Duration.ZERO
+        this.tracks.forEach { totalDuration += it.duration }
+        return totalDuration
+    }
+
+    override fun toString(): String {
+        return "${this.albumName} by ${this.artist}\nTotal duration: ${this.totalDuration()}\nTracks:\n${this.tracks.joinToString("\n")}"
+    }
+}

Java/lab_6/Dancepop.kt

@@ -0,0 +1,15 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents a track in the Dance-pop style.
+ *
+ * @param numberInAlbum The position of the track on the album.
+ * @param trackName The name of the track.
+ * @param feature The featured artist(s) in the track (nullable if no featured artist).
+ * @param duration The [Duration] of the track.
+ */
+class Dancepop(numberInAlbum: Int, trackName: String, feature: String?, duration: Duration): Track(numberInAlbum, trackName, feature, duration) {
+    override val style = "Dance-pop"
+}

Java/lab_6/Electropop.kt

@@ -0,0 +1,15 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents a track in the Electropop style.
+ *
+ * @param numberInAlbum The position of the track on the album.
+ * @param trackName The name of the track.
+ * @param feature The featured artist(s) in the track (nullable if no featured artist).
+ * @param duration The [Duration] of the track.
+ */
+class Electropop(numberInAlbum: Int, trackName: String, feature: String?, duration: Duration): Track(numberInAlbum, trackName, feature, duration) {
+    override val style = "Electropop"
+}

Java/lab_6/Interlude.kt

@@ -0,0 +1,15 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents an interlude track.
+ *
+ * @param numberInAlbum The position of the track on the album.
+ * @param trackName The name of the track.
+ * @param feature The featured artist(s) in the track (nullable if no featured artist).
+ * @param duration The [Duration] of the track.
+ */
+class Interlude(numberInAlbum: Int, trackName: String, feature: String?, duration: Duration): Track(numberInAlbum, trackName, feature, duration) {
+    override val style = "Interlude"
+}

Java/lab_6/Synthpop.kt

@@ -0,0 +1,15 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents a track in the Synth-pop style.
+ *
+ * @param numberInAlbum The position of the track on the album.
+ * @param trackName The name of the track.
+ * @param feature The featured artist(s) in the track (nullable if no featured artist).
+ * @param duration The [Duration] of the track.
+ */
+class Synthpop(numberInAlbum: Int, trackName: String, feature: String?, duration: Duration): Track(numberInAlbum, trackName, feature, duration) {
+    override val style = "Synth-pop"
+}

Java/lab_6/Track.kt

@@ -0,0 +1,27 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration
+
+/**
+ * Represents a track on an album.
+ *
+ * @param numberInAlbum The position of the track on the album.
+ * @param trackName The name of the track.
+ * @param feature The featured artist(s) in the track (nullable if no featured artist).
+ * @param duration The [Duration] of the track.
+ */
+open class Track(val numberInAlbum: Int, val trackName: String, val feature: String?, val duration: Duration) {
+
+    /**
+     * The style or genre of the track.
+     */
+    open val style = ""
+
+    override fun toString(): String {
+        return if (this.feature == null) {
+            "#${this.numberInAlbum}: ${this.trackName} (${this.duration})"
+        } else {
+            "#${this.numberInAlbum}: ${this.trackName} ft. ${this.feature} (${this.duration})"
+        }
+    }
+}

Java/lab_6/main.kt

@@ -0,0 +1,42 @@
+package OOP.Java.lab_6
+
+import kotlin.time.Duration.Companion.minutes
+import kotlin.time.Duration.Companion.seconds
+
+fun main() {
+
+    val chromatica = Album(
+        "Chromatica",
+        "Lady Gaga",
+        arrayOf(
+            Interlude(1, "Chromatica I", null, 1.minutes),
+            Synthpop(2, "Alice", null, 2.minutes + 57.seconds),
+            Dancepop(3, "Stupid Love", null, 3.minutes + 13.seconds),
+            Dancepop(4, "Rain On Me", "Ariana Grande", 3.minutes + 2.seconds),
+            Synthpop(5, "Free Woman", null, 3.minutes + 11.seconds),
+            Electropop(6, "Fun Tonight", null, 2.minutes + 53.seconds),
+            Interlude(7, "Chromatica II", null, 41.seconds),
+            Synthpop(8, "911", null, 2.minutes + 52.seconds),
+            Electropop(9, "Plastic Doll", null, 3.minutes + 41.seconds),
+            Dancepop(10, "Sour Candy", "Blackpink", 2.minutes + 37.seconds),
+            Dancepop(11, "Enigma", null, 2.minutes + 59.seconds),
+            Synthpop(12, "Replay", null, 3.minutes + 6.seconds),
+            Interlude(13, "Chromatica III", null, 27.seconds),
+            Electropop(14, "Sine From Above", "Elton John", 4.minutes + 4.seconds),
+            Synthpop(15, "1000 Doves", null, 3.minutes + 35.seconds),
+            Dancepop(16, "Babylon", null, 2.minutes + 41.seconds)
+        )
+    )
+
+    println("$chromatica\n")
+
+    println("${chromatica.albumName} tracks sorted by musical style:\n${chromatica.tracks.sortedBy { it.style }.joinToString("\n")}\n")
+
+    val durationRange = 1.minutes.. 3.minutes + 30.seconds
+
+    println(
+        "${chromatica.albumName} tracks in a duration range ($durationRange):\n${chromatica.tracksInDurationRange(durationRange).joinToString("\n")}"
+    )
+}
+
+

OOP_IO-2x_2023.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>

Rust/lab_1/Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "lab_1"
+version = "0.1.0"
+dependencies = [
+ "text_io",
+]
+
+[[package]]
+name = "text_io"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5f0c8eb2ad70c12a6a69508f499b3051c924f4b1cfeae85bfad96e6bc5bba46"

Rust/lab_1/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "lab_1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+text_io = "0.1.12"

Rust/lab_1/src/main.rs

@@ -0,0 +1,22 @@
+fn protected_read(variable_name: &str) -> i32 {
+    use text_io::try_read;
+    loop {
+        print!("Enter {}: ", variable_name);
+        let read_result: Result<i32, _> = try_read!();
+        match read_result {
+            Ok(read_integer) => return read_integer,
+            Err(_e) => println!("{} must be an integer!", variable_name.to_uppercase()),
+        }
+    }
+}
+
+fn main() {
+    let n: i32 = protected_read("n");
+    let m: i32 = protected_read("m");
+    let a: i32 = protected_read("a");
+    let b: i32 = protected_read("b");
+
+    let s: f32 = ((b + m) as f32 / 2f32) * ((m - b + 1) * (n - a + 1)) as f32;
+
+    println!("S = {}", s);
+}

Rust/lab_2/Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "lab_2"
+version = "0.1.0"
+dependencies = [
+ "text_io",
+]
+
+[[package]]
+name = "text_io"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5f0c8eb2ad70c12a6a69508f499b3051c924f4b1cfeae85bfad96e6bc5bba46"

Rust/lab_2/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "lab_2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+text_io = "0.1.12"

Rust/lab_2/src/main.rs

@@ -0,0 +1,140 @@
+// #[allow(dead_code)]
+fn capitalise(s: &str) -> String {
+    let mut c = s.chars();
+    match c.next() {
+        None => String::new(),
+        Some(f) => f.to_uppercase().collect::<String>() + c.as_str(),
+    }
+}
+
+fn read_row() -> Vec<i16> {
+    loop {
+        print!("Row (separated by spaces): ");
+        let raw_row: String = text_io::read!("{}\n");
+        let trimmed_row: &str = raw_row.trim();
+        match trimmed_row.split(" ").all(|value| {
+            value.chars().all(|char| char.is_numeric() || char == '-')
+                && value.parse::<i32>().unwrap() <= i16::MAX as i32
+                && value.parse::<i32>().unwrap() >= i16::MIN as i32
+        }) {
+            true => {
+                return trimmed_row
+                    .split(" ")
+                    .map(|value| value.parse::<i16>().unwrap())
+                    .collect::<Vec<i16>>()
+            }
+            false => println!("[Error] The row must consist of short integers, try again."),
+        }
+    }
+}
+
+fn generate_row(row_index: u16, length: u16) -> Vec<i16> {
+    return (0..length)
+        .map(|element_index| (element_index as i16 + 1) * (row_index as i16 + 1))
+        .collect();
+}
+
+fn read_matrix() -> Vec<Vec<i16>> {
+    let rows: u16 = protected_u16_read("the number of rows");
+    loop {
+        print!("Generate [s]quare or [r]ectangle matrix or [i]nput manually [s/r/i]: ");
+        let option: String = text_io::read!();
+        match option.to_lowercase().as_str() {
+            "s" => return (0..rows).map(|i| generate_row(i, rows)).collect(),
+            "r" => {
+                let columns: u16 = protected_u16_read("the number of columns");
+                return (0..rows).map(|i| generate_row(i, columns)).collect();
+            }
+            "i" => return (0..rows).map(|_| read_row()).collect(),
+            _ => println!("[Error] Not an option, try again."),
+        }
+    }
+}
+
+fn protected_u16_read(variable_name: &str) -> u16 {
+    use text_io::try_read;
+    loop {
+        print!("Enter {}: ", variable_name);
+        let read_result: Result<u16, _> = try_read!();
+        match read_result {
+            Ok(read_integer) => return read_integer,
+            Err(_e) => println!(
+                "{} must be a short integer, try again.",
+                capitalise(variable_name)
+            ),
+        }
+    }
+}
+
+fn multiply_matrix_by_number(matrix: &Vec<Vec<i16>>, multiplier: u16) -> Vec<Vec<i16>> {
+    return matrix
+        .iter()
+        .map(|row| {
+            row.iter()
+                .map(|element| element * multiplier as i16)
+                .collect()
+        })
+        .collect();
+}
+
+fn average_of_row(row: &Vec<i16>) -> f32 {
+    return row.iter().sum::<i16>() as f32 / row.len() as f32;
+}
+
+fn format_matrix(matrix: &Vec<Vec<i16>>) -> String {
+    let max_width = matrix
+        .iter()
+        .map(|row| {
+            row.iter()
+                .map(|element| element.to_string().len())
+                .max()
+                .unwrap()
+        })
+        .max()
+        .unwrap();
+
+    let mut formatted_matrix: String = matrix
+        .iter()
+        .map(|row| {
+            row.iter()
+                .map(|element| format!("| {:max_width$} ", element))
+                .collect::<Vec<String>>()
+                .join("")
+        })
+        .collect::<Vec<String>>()
+        .join("|\n");
+    formatted_matrix.push('|');
+    return formatted_matrix;
+}
+
+fn format_column(column: &Vec<f32>) -> String {
+    let max_width = column
+        .iter()
+        .map(|element| element.to_string().len())
+        .max()
+        .unwrap();
+
+    return column
+        .iter()
+        .map(|element| format!("| {:max_width$} |", element))
+        .collect::<Vec<String>>()
+        .join("\n");
+}
+
+fn main() {
+    let full_vec_test: Vec<Vec<i16>> = read_matrix();
+    println!("\nMatrix B:\n{}\n", format_matrix(&full_vec_test));
+
+    let mult_full_vec_test: Vec<Vec<i16>> =
+        multiply_matrix_by_number(&full_vec_test, protected_u16_read("matrix multiplier"));
+    println!("Matrix a×B:\n{}\n", format_matrix(&mult_full_vec_test));
+
+    let row_averages: Vec<f32> = mult_full_vec_test
+        .iter()
+        .map(|row| average_of_row(row))
+        .collect();
+    println!(
+        "Averages for each row in a×B:\n{}",
+        format_column(&row_averages)
+    );
+}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab1/Lab1.java

@@ -1,43 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab1;
-
-import java.util.Scanner;
-
-public class Lab1 {
-    public static void main(String[] args) {
-//        O1 = +
-//        C = 2
-//        O2 = %
-//        i, j = short(-32.768 to 32.768)
-        final int c = 2;
-        double result = 0;
-        Scanner scan = new Scanner(System.in);
-        System.out.print("Enter a: ");
-        int a = scan.nextInt();// Entering a
-        System.out.print("Enter b: ");
-        int b = scan.nextInt();// Entering b
-        System.out.print("Enter n: ");
-        int n = scan.nextInt();// Entering n
-        System.out.print("Enter m: ");
-        int m = scan.nextInt();// Entering m
-        scan.close();
-
-        if (a <= -c && n >= -c || b <= 0 && m >= 0) {
-            System.out.println("Error! Division by zero");
-            return;
-        }
-        else if(a > n || b > m){
-            result = 0;
-            System.out.println(result);
-            return;
-        }
-
-        for (short i = (short) a; i <= n; i++) {
-            for (short j = (short) b; j <= m; j++) {
-                result += (double) (i % j) / (i + c); //Calculation of the result
-            }
-        }
-        System.out.println("\ns = " + result); // Outputting the result
-
-    }
-}
-

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab2/Lab2.java

@@ -1,84 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab2;
-
-import java.util.Scanner;
-
-public class Lab2 {
-    public static void main(String[] args) {
-//        C5 = 2
-//        C7 = 1
-//        C11 = 4
-        Scanner scan = new Scanner(System.in);
-        System.out.print("Enter the number of matrix rows: ");
-        int m = scan.nextInt();
-        System.out.print("Enter the number of matrix columns: ");
-        int n = scan.nextInt();
-
-        System.out.println("\nFilling matrix A:");
-        byte[][] matrixA = new byte[m][n]; // Creating MxN matrix A
-        scanMatrix(matrixA, scan);
-
-        System.out.println("\nMatrix A"); // Printing matrix A
-        printMatrix(matrixA);
-
-        System.out.println("\nFilling matrix B:");
-        byte[][] matrixB = new byte[m][n];// Creating MxN matrix B
-        scanMatrix(matrixB, scan);
-
-        scan.close();
-
-        System.out.println("\nMatrix B:");// Printing matrix B
-        printMatrix(matrixB);
-
-        System.out.println("\nMatrix C:");
-        byte[][] matrixC = new byte[m][n];// Creating matrix C
-        for (byte i = 0; i < m; i++) {
-            for (byte j = 0; j < n; j++) {
-                matrixC[i][j] = (byte) (matrixA[i][j] + matrixB[i][j]);
-                System.out.print(matrixC[i][j] + "\t ");
-            }
-            System.out.println();
-        }
-
-        byte evenSum = 0; // Sum for the largest numbers in even rows
-        byte oddSum = 0;// Sum for the smallest numbers in even rows
-
-        for (byte i = 0; i < matrixC.length; i++) {
-            byte largest = Byte.MIN_VALUE; // variable for largest element
-            byte smallest = Byte.MAX_VALUE;// variable for smallest element
-            for (byte j = 0; j < matrixC[i].length; j++) {
-                if (i % 2 == 0) {
-                    smallest = (byte) Math.min(smallest, matrixC[i][j]);
-                } else {
-                    largest = (byte) Math.max(largest, matrixC[i][j]);
-                }
-            }
-            if (i % 2 == 0) {
-                oddSum += smallest;
-            } else {
-                evenSum += largest;
-            }
-        }
-
-        System.out.println("\nSum of the biggest elements: " + evenSum);
-        System.out.println("Sum of the smallest elements: " + oddSum);
-    }
-
-    private static void scanMatrix(byte[][] matrix, Scanner scan) { //Method for filling matrix
-        for (byte i = 0; i < matrix.length; i++) {
-            for (byte j = 0; j < matrix[i].length; j++) {
-                System.out.printf("Enter element [%d][%d]", i, i);
-                matrix[i][j] = scan.nextByte();
-            }
-        }
-    }
-
-    private static void printMatrix(byte[][] matrix) {//Method for printing matrix
-        for (byte[] row : matrix) {
-            for (byte el : row) {
-                System.out.print(el + "\t ");
-            }
-            System.out.println();
-        }
-    }
-}
-

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab3/Lab3.java

@@ -1,25 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab3;
-
-import java.util.*;
-
-public class Lab3 {
-    // String
-    // Надрукувати слова без повторень заданого тексту в алфавітному порядку за першою літерою.
-
-    public static void main(String[] args) {
-        String text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Mauris a diam maecenas sed enim ut sem viverra. Amet est placerat in egestas erat imperdiet. Sed turpis tincidunt id aliquet risus. Amet porttitor eget dolor morbi non arcu risus quis. Elementum nibh tellus molestie nunc non blandit massa. Feugiat scelerisque varius morbi enim nunc faucibus. Ipsum faucibus vitae aliquet nec ullamcorper sit amet risus nullam. Quis enim lobortis scelerisque fermentum dui faucibus in. Sem viverra aliquet eget sit amet tellus cras adipiscing enim. Sed ullamcorper morbi tincidunt ornare. Sodales ut eu sem integer vitae justo eget magna. Mi ipsum faucibus vitae aliquet nec ullamcorper.";
-        String[] words = text.split("[\\p{Punct}\\s]+");
-        List<String> wordList = new ArrayList<>(Arrays.asList(words));//Class ArrayList implements interface List
-        // asList returns immutable list
-        Set<String> wordSet = new HashSet<>(wordList);// Class HashSet implements interface Set
-        wordList.clear();
-        wordList.addAll(wordSet);
-        wordList.sort(String::compareToIgnoreCase);
-        wordList.sort((o1, o2) -> o1.compareToIgnoreCase(o2));
-
-        for (String element : wordList) {
-            System.out.println(element);
-        }
-    }
-}
-

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab4/Boat.java

@@ -1,34 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab4;
-
-/**
- * Class that represents a boat with different characteristics.
- */
-public class Boat {
-    private final String name;
-    private final int price;
-    private final int mass;
-    private final int age;
-    private final String type;
-
-    public Boat(String name, int price, int mass, int age, String type) {
-        this.name = name;
-        this.price = price;
-        this.mass = mass;
-        this.age = age;
-        this.type = type;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public int getPrice() {
-        return price;
-    }
-
-    @Override
-    public String toString() {
-        return String.format("%s - %s, which was built %d years ago, with mass - %d kg, has price - %d$;",
-                type, name, age, mass, price);
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab4/Lab4.java

@@ -1,35 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab4;
-
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.List;
-
-public class Lab4 {
-    public static void main(String[] args) {
-        List<Boat> boatList = Arrays.asList(
-                new Boat("Row V. Wave", 150000, 50000, 25, "cutter"),
-                new Boat("Dirty Oar", 250000, 40000, 15, "cutter"),
-                new Boat("Tumeric", 450000, 100000, 45, "cutter"),
-                new Boat("Life is Good", 350000, 20000, 5, "cutter")
-        );
-
-        boatList.sort(Comparator.comparing(Boat::getName));// comparing - method of Comparator interface
-        System.out.println("Sorted by name:");
-        printed(boatList);
-
-        boatList.sort(Comparator.comparing(Boat::getPrice).reversed());
-        System.out.println("\nSorted by price in reverse order:");
-        printed(boatList);
-    }
-
-    /**
-     * Print all characteristics of boats.
-     *
-     * @param boatList List of boats.
-     */
-    public static void printed(List<Boat> boatList) {
-        for (Boat boat : boatList) {
-            System.out.println(boat);
-        }
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Lab5.java

@@ -1,12 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-import java.util.*;
-
-public class Lab5 {
-    public static void main(String[] args) {
-        Text text = new Text("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Mauris a diam maecenas sed enim ut sem viverra. Amet est placerat in egestas erat imperdiet. Sed turpis tincidunt id aliquet risus. Amet porttitor eget dolor morbi non arcu risus quis. Elementum nibh tellus molestie nunc non blandit massa. Feugiat scelerisque varius morbi enim nunc faucibus. Ipsum faucibus vitae aliquet nec ullamcorper sit amet risus nullam. Quis enim lobortis scelerisque fermentum dui faucibus in. Sem viverra aliquet eget sit amet tellus cras adipiscing enim. Sed ullamcorper morbi tincidunt ornare. Sodales ut eu sem integer vitae justo eget magna. Mi ipsum faucibus vitae aliquet nec ullamcorper.");
-        System.out.println(text);
-        text.getSortedWordsByFirstLetter();
-    }
-
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Letter.java

@@ -1,14 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-public class Letter {
-    private final char character;
-
-    public Letter(char character) {
-        this.character = character;
-    }
-
-    @Override
-    public String toString() {
-        return String.valueOf(character);
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Punctuation.java

@@ -1,14 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-public class Punctuation implements SentenceElement {
-    private final String character;
-
-    public Punctuation(String character) {
-        this.character = character;
-    }
-
-    @Override
-    public String toString() {
-        return character;
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Sentence.java

@@ -1,55 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-import java.util.Arrays;
-import java.util.HashSet;
-
-public class Sentence {
-    private final SentenceElement[] sentenceElements;
-    private static final String PUNCTUATION = "\\p{Punct}";
-
-    public Sentence(String sentences) {
-        String[] sentenceElement = sentences.split("(?=" + PUNCTUATION + ")| ");
-        sentenceElements = new SentenceElement[sentenceElement.length];
-        for (int i = 0; i < sentenceElement.length; i++) {
-            if (sentenceElement[i].matches(PUNCTUATION)) {
-                sentenceElements[i] = new Punctuation(sentenceElement[i]);
-            } else {
-                sentenceElements[i] = new Word(sentenceElement[i]);
-            }
-        }
-    }
-
-    public static void getSortedWordsByFirstLetter(Sentence[] sentences) {
-        StringBuilder allWords = new StringBuilder();
-        for (Sentence sentence : sentences) {
-            allWords.append(sentence).append(" ");
-        }
-
-        String[] words = allWords.toString().split("\\W+");
-
-        HashSet<String> uniqueWords = new HashSet<>();
-
-        for (String word : words) {
-            uniqueWords.add(word.toLowerCase());
-        }
-
-        String[] uniqueSortedWords = uniqueWords.toArray(new String[0]);
-
-        Arrays.sort(uniqueSortedWords);
-
-        for (String word : uniqueSortedWords) {
-            System.out.println(word);
-        }
-    }
-    @Override
-    public String toString() {
-        StringBuilder out = new StringBuilder();
-        for (SentenceElement se : sentenceElements) {
-            if (se.getClass().isAssignableFrom(Word.class)) {
-                out.append(" ");
-            }
-            out.append(se);
-        }
-        return out.toString();
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/SentenceElement.java

@@ -1,5 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-public interface SentenceElement {
-    // Об'єднуєм два типа
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Text.java

@@ -1,26 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-public class Text {
-    private final Sentence[] sentences;
-
-    public Text(String text) {
-        String[] splitText = text.split("(?=[.!?]+)| ");
-        sentences = new Sentence[splitText.length];
-        for (int i = 0; i < splitText.length; i++) {
-            sentences[i] = new Sentence(splitText[i]);
-        }
-    }
-
-    public void getSortedWordsByFirstLetter() {
-        Sentence.getSortedWordsByFirstLetter(sentences);
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder out = new StringBuilder();
-        for (Sentence sentence : sentences) {
-            out.append(sentence.toString());
-        }
-        return out.toString().strip();
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Word.java

@@ -1,21 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab5;
-
-public class Word implements SentenceElement {
-    private final Letter[] letters;
-
-    public Word(String word) {
-        letters = new Letter[word.length()];
-        for (int i = 0; i < word.length(); i++) {
-            letters[i] = new Letter(word.charAt(i));
-        }
-    }
-
-    @Override
-    public String toString() {
-        StringBuilder out = new StringBuilder();
-        for (Letter let : letters) {
-            out.append(let.toString());
-        }
-        return out.toString();
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Comfort.java

@@ -1,7 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab6;
-
-public class Comfort extends Tariff {
-    public Comfort(String name, int price, int customers) {
-        super(name, price, customers);
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Economy.java

@@ -1,8 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab6;
-
-public class Economy extends Tariff {
-
-    public Economy(String name, int price, int customers) {
-        super(name, price, customers);
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Lab6.java

@@ -1,48 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab6;
-
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.Scanner;
-
-public class Lab6 {
-    public static void main(String[] args) {
-        Comfort tariff1 = new Comfort("Comfort", 100, 5000);
-        Economy tariff2 = new Economy("Economy", 25, 10000);
-        Optimal tariff3 = new Optimal("Optimal", 300, 50000);
-
-        Tariff[] tariffs = {tariff1, tariff2, tariff3};
-        int sum = 0;
-        System.out.println("Тарифи мобільної мобільної компанії:");
-        for (int i = 0; i < tariffs.length; i++) {
-            System.out.printf("\t%d. %s%n", i + 1, tariffs[i].getName());
-            sum += tariffs[i].getCustomers();
-        }
-        System.out.println("\nЗагальна кількість користувачів: " + sum + ";");
-
-        System.out.println("\nТарифи мобільної компанії відсортовані за вартістю:");
-        Arrays.sort(tariffs, Comparator.comparing(Tariff::getPrice));
-        for (int i = 0; i < tariffs.length; i++) {
-            System.out.printf("\t%d. %s%n", i + 1, tariffs[i]);
-        }
-        System.out.println("\nВведіть діапазон цін, в якому бажаєте підібрати тариф: ");
-
-        Scanner scan = new Scanner(System.in);
-        System.out.print("\tМінімальна ціна: ");
-        int minSum = scan.nextInt();
-        System.out.print("\tМаксимальна ціна: ");
-        int maxSum = scan.nextInt();
-        scan.close();
-        int n2 = 0;
-
-        System.out.println("\nПідібрані тарифи: ");
-        for (int i = 0; i < tariffs.length; i++) {
-            if (minSum <= tariffs[i].getPrice() && tariffs[i].getPrice() <= maxSum) {
-                System.out.printf("\t%d. %s%n", i + 1, tariffs[i]);
-                n2 += 1;
-            }
-        }
-        if (n2 == 0) {
-            System.out.println("\tНе знайдено тарифів в заданому діапазоні цін;");
-        }
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Optimal.java

@@ -1,7 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab6;
-
-public class Optimal extends Tariff {
-    public Optimal(String name, int price, int customers) {
-        super(name, price, customers);
-    }
-}

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Tariff.java

@@ -1,30 +0,0 @@
-package IO_24._02_Бондаренко_Тарас_Андрійович.lab6;
-
-public class Tariff {
-    private final String name;
-    private final int price;
-    private final int customers;
-
-    public Tariff(String name, int price, int customers) {
-        this.name = name;
-        this.price = price;
-        this.customers = customers;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public int getPrice() {
-        return price;
-    }
-
-    public int getCustomers() {
-        return customers;
-    }
-
-    @Override
-    public String toString() {
-        return "Тариф " + name + ", коштує " + price + " грн.";
-    }
-}

src/Main.java

@@ -1,15 +0,0 @@
-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

@@ -1,20 +0,0 @@
-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

@@ -1,10 +0,0 @@
-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

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

src/encapsulationInheritancePolymorphism/Student.java

@@ -1,18 +0,0 @@
-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/test/A.java

@@ -1,13 +0,0 @@
-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

@@ -1,15 +0,0 @@
-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);
-    }
-}