Create SixthLab.java

.gitignore

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

.idea/.gitignore

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

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <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

@@ -0,0 +1,8 @@
+<?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

@@ -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

@@ -0,0 +1,6 @@
+<?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

@@ -1,33 +0,0 @@
- 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

@@ -1,23 +0,0 @@
-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

@@ -1,109 +0,0 @@
-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

@@ -1,57 +0,0 @@
-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

@@ -1,11 +0,0 @@
-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

@@ -1,26 +0,0 @@
-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

@@ -1,23 +0,0 @@
-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

@@ -1,19 +0,0 @@
-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

@@ -1,35 +0,0 @@
-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

@@ -1,83 +0,0 @@
-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

@@ -1,22 +0,0 @@
-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

@@ -1,33 +0,0 @@
-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

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

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

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

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

@@ -1,27 +0,0 @@
-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

@@ -1,42 +0,0 @@
-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

@@ -0,0 +1,11 @@
+<?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

@@ -1,16 +0,0 @@
-# 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

@@ -1,9 +0,0 @@
-[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

@@ -1,22 +0,0 @@
-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

@@ -1,16 +0,0 @@
-# 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

@@ -1,9 +0,0 @@
-[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

@@ -1,140 +0,0 @@
-// #[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/Main.java

@@ -0,0 +1,15 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println(args[2]);
+        System.out.println("Hello world!");
+//        System.out.println(1);
+    }
+
+    void myFunction() {
+
+    }
+
+    int myFunction2() {
+        return 1;
+    }
+}

src/_12_Закревський_Данило_Сергійович/lab1/FirstLab.java

@@ -0,0 +1,30 @@
+import java.util.Scanner;
+
+public class FirstLab {
+ 
+    public static void main(String[] args) {
+        Scanner scn = new Scanner(System.in);
+        final int C = 0; 
+        double S = 0.0;
+        System.out.print("Enter a: "); 
+        int a = scn.nextInt(); 
+        System.out.print("Enter b: ");
+        int b = scn.nextInt();
+        System.out.print("Enter n: ");
+        int n = scn.nextInt();
+        System.out.print("Enter m: ");
+        int m = scn.nextInt();
+        if ((a <= 0 & n >= 0) | (b <= 0 & m >= 0)){
+            System.out.println("Division by 0!"); 
+        } else {
+            for (char i = (char) a; i <= n; i++) {
+                for(char j = (char) b; j <= m; j++) {
+                        S += (double) (i % j) / (i + C);
+                }
+            }
+            System.out.printf("Result - %.3f", S);
+        }
+
+        scn.close();
+    }
+}

src/_12_Закревський_Данило_Сергійович/lab2/SecondLab.java

@@ -0,0 +1,63 @@
+import java.util.Scanner;
+import java.util.Random;
+
+public class SecondLab {
+
+    public static void main(String[] args) {
+        Scanner scn = new Scanner(System.in);
+        Random rnd = new Random();
+        System.out.print("Enter number of rows in matrix A: ");
+        int mA = scn.nextInt(); 
+        System.out.print("Enter the number of columns in matrix A: ");
+        int nA = scn.nextInt(); 
+        System.out.print("Enter number of rows in matrix B: ");
+        int mB = scn.nextInt(); 
+        System.out.print("Enter the number of columns in matrix B: ");
+        int nB = scn.nextInt(); 
+        long largest, sum = 0L; 
+        if(mA != mB || nA != nB) {
+            System.out.println("Unable to add matrices!"); 
+        } else {
+            long[][] matrixA = new long[mA][nA];
+            long[][] matrixB = new long[mB][nB]; 
+            long[][] matrixC = new long[mA][nA];
+
+            System.out.println("Matrix A: ");
+            for(int i = 0; i < mA; i++) {
+                for(int j = 0; j < nA; j++) {
+                    matrixA[i][j] = rnd.nextLong(10, 50) + 10;
+                    System.out.printf("|%d", matrixA[i][j]);      
+                }
+                System.out.println("|");
+            }
+            System.out.println("Matrix B: ");
+            for(int i = 0; i < nA; i++) {
+                for(int j = 0; j < nB; j++) {
+                    matrixB[i][j] = rnd.nextLong(10, 50) + 10;
+                    System.out.printf("|%d", matrixB[i][j]); 
+                }
+                System.out.println("|");
+            }
+            System.out.println("Matrix C: ");
+            for(int i = 0; i < mA; i++) {
+                for(int j = 0; j < nA; j++) {
+                    matrixC[i][j] = matrixA[i][j] + matrixB[i][j];
+                    System.out.printf("|%d", matrixC[i][j]);    
+                }
+                System.out.println("|");
+            }
+            for(long[] row: matrixC) {
+                largest = row[0];
+                for(long elem : row) {
+                    if(elem > largest) {
+                        largest = elem;    
+                    }
+                }
+                sum += largest;        
+            }
+            System.out.printf("Sum = %d", sum); 
+        }
+        scn.close();
+    }
+    
+}

src/_12_Закревський_Данило_Сергійович/lab3/ThirdLab.java

@@ -0,0 +1,33 @@
+import java.util.Scanner;
+
+public class ThirdLab {
+
+    public static void main(String[] args) {
+        Scanner scn = new Scanner(System.in);
+        System.out.print("Enter a string: "); 
+        String text = scn.nextLine();  
+        StringBuilder textBuilder = new StringBuilder(text); 
+        System.out.print("Enter a string to replace the words: ");
+        String replace = scn.nextLine(); 
+        System.out.print("Enter the length of the words to replace: ");
+        int length = scn.nextInt(); 
+        String[] words = textBuilder.toString().split("\\s+"); 
+        textBuilder.setLength(0);  
+        for(String word : words) {
+            if(word.charAt(word.length()-1) == '.' && word.length() - 1 == length) {
+                textBuilder.append(replace + ". "); 
+            } else if (word.charAt(word.length() - 1) == '!' && word.length() - 1 == length) {
+                textBuilder.append(replace + "! ");
+            } else if (word.charAt(word.length() - 1) == '?' && word.length() - 1 == length) { 
+                textBuilder.append(replace + "? ");
+            } else if (word.length() == length) {          
+                textBuilder.append(replace + " "); 
+            } else {
+                textBuilder.append(word + " ");
+            }
+        }
+
+        System.out.printf("Result: %s", textBuilder);
+        scn.close();
+    }
+}

src/_12_Закревський_Данило_Сергійович/lab4/Airplane.java

@@ -0,0 +1,59 @@
+import java.util.Comparator;
+
+public class Airplane {
+  private String name;
+	private String type; 
+	private int weight; 
+  private int amountOfEngines;
+  private int year; 
+	private String color; 
+	private int capacity;
+  private int price; 
+	
+
+  public Airplane(String name, String type, int weight, int amountOfEngines, int year, String color, int capacity, int price) {
+		this.name = name;
+    this.type = type;
+		this.weight = weight;
+		this.amountOfEngines = amountOfEngines;
+    this.year = year;
+		this.color = color;
+		this.capacity = capacity;
+    this.price = price;
+	}
+
+  public int getPrice() {
+      return price;
+  }
+
+  public int getYear() {
+      return year;
+  }
+
+  @Override
+  public String toString() {
+      return "Plane : " +
+              "name = " + name +
+              ", type = " + type +
+              ", weight = " + weight + " tons" +
+              ", amount of engines = " + amountOfEngines +
+              ", year = " + year + 
+              ", color = " + color + 
+              ", capacity = " + capacity + 
+              ", price = " + price + " millions dollars.";
+  }
+}
+
+class SortByPrice implements Comparator<Airplane> {
+    
+    public int compare(Airplane a, Airplane b) {
+        return a.getPrice() - b.getPrice();
+    }
+} 
+
+class SortByYear implements Comparator<Airplane> {
+
+    public int compare(Airplane a, Airplane b) {
+        return a.getYear() - b.getYear();
+    }
+}

src/_12_Закревський_Данило_Сергійович/lab4/FourthLab.java

@@ -0,0 +1,32 @@
+import java.util.Arrays;
+
+public class FourthLab {
+
+    public static void main(String[] args) {
+        final Airplane plane1 = new Airplane("Boeing 747", "passenger", 180, 4, 1970, "Lightblue", 467, 70);
+        final Airplane plane2 = new Airplane("Airbus A380", "passenger", 575, 4, 2003, "Orange", 850, 389);
+        final Airplane plane3 = new Airplane("General Dynamics F-16", "military", 9, 1, 1974, "Grey", 1, 45);
+        final Airplane plane4 = new Airplane("Boeing C-17 Globemaster III", "cargo", 130, 4, 1995, "Grey", 102, 340);
+        final Airplane plane5 = new Airplane("An-225 Mriya", "cargo", 285, 6, 1990, "White", 20, 500);
+        Airplane[] planes = {plane1, plane2, plane3, plane4, plane5};
+
+        System.out.println("List of planes: ");
+        for(Airplane plane : planes) {
+            System.out.println(plane);
+        }
+        System.out.println();
+
+        Arrays.sort(planes, new SortByPrice());
+        System.out.println("Sorted by price: ");  
+        for(Airplane plane : planes) {
+            System.out.println(plane);
+        }
+        System.out.println();
+
+        Arrays.sort(planes, new SortByYear().reversed());
+        System.out.println("Sorted by year: ");
+        for(Airplane plane : planes) {
+            System.out.println(plane);
+        }
+    }
+}

src/_12_Закревський_Данило_Сергійович/lab5/FifthLab.java

@@ -0,0 +1,139 @@
+import java.util.Scanner;
+
+public class FifthLab {
+
+    public static void main(String[] args) {
+        Scanner scn = new Scanner(System.in);
+        System.out.println("Enter a string: ");
+        String text = scn.nextLine();
+        StringBuilder textBuilder = new StringBuilder(text);
+        StringBuilder result = new StringBuilder();
+
+        System.out.print("Enter a string to replace the words: ");
+        String replace = scn.nextLine();
+        System.out.print("Enter the length of the words to replace: ");
+        int length = scn.nextInt();
+        
+        System.out.println("\nText before changes: ");
+        System.out.println(textBuilder);
+
+
+        String[] mySentence = textBuilder.toString().split("(?<=[!.?])\\s?");
+        for(String s: mySentence) {
+            StringBuilder sb = new StringBuilder(s);
+            Sentence sentence = new Sentence(sb, length, replace);
+            result.append(sentence.wordsSplit());
+        }
+
+        System.out.println("\nText after changes: ");
+        System.out.println(result);
+        scn.close();
+    }  
+}
+
+class Sentence {
+    
+    private final StringBuilder sentence;
+    private final int length;
+    private final String replace;
+
+    public Sentence(StringBuilder sentence, int length, String replace) {
+        this.sentence = sentence;
+        this.length = length;
+        this.replace = replace;
+    }
+
+    public StringBuilder wordsSplit() {
+        StringBuilder ReturnSentence = new StringBuilder();
+        String text = sentence.toString();
+        String[] words = text.split(" ");
+        for(String s: words) {
+            StringBuilder sb = new StringBuilder(s);
+            Word word = new Word(sb, length, replace);
+            ReturnSentence.append(word.lettersSplit()).append(" ");
+        }
+
+        return ReturnSentence;
+    }
+}
+
+class Word {
+
+    private final StringBuilder word;
+    private final int length;
+    private final String replace;
+
+    public Word(StringBuilder word, int length, String replace) {
+        this.word = word;
+        this.length = length;
+        this.replace = replace;
+    }
+
+    public StringBuilder lettersSplit() {
+        StringBuilder ReturnWord = new StringBuilder();
+        String wordstr = word.toString();
+        int len = wordstr.length();
+        String[] letters = wordstr.split("");
+        String[] ReplaceLetters = replace.split("");
+        char last = wordstr.charAt(word.length() - 1);
+        if(last == '!' || last == '?' || last == '.') {
+            if(wordstr.charAt(word.length() - 2) == '.') {
+                len = wordstr.length() - 3;
+            } else {
+                len = wordstr.length() - 1;
+            }
+        }
+        if(len == length) {
+            for(String chr: ReplaceLetters) {
+                StringBuilder ltr = new StringBuilder(chr);
+                Letter letter = new Letter(ltr);
+                ReturnWord.append(letter.getLetter());
+            }
+            if(wordstr.length() - len == 1) {
+                ReturnWord.append(wordstr.charAt(wordstr.length() - 1));
+            } else if(wordstr.length() - len == 3) {
+                ReturnWord.append("...");
+            }
+        } else {
+            for(String chr: letters) {
+                StringBuilder ltr = new StringBuilder(chr);
+                if(chr.equals("!") || chr.equals("?") || chr.equals(".") || chr.equals(",") || chr.equals(":") || chr.equals(";")) {
+                    Punctuation punctuation = new Punctuation(ltr);
+                    ReturnWord.append(punctuation.getPunctuation());
+                } else {
+                    Letter letter = new Letter(ltr);
+                    ReturnWord.append(letter.getLetter());
+                }
+            }
+        }
+        
+        return ReturnWord;
+    }
+}
+
+class Letter {
+
+    private final StringBuilder letter;
+
+    public Letter(StringBuilder letter) {
+        this.letter = letter;
+    }
+
+    public StringBuilder getLetter() {
+        return letter;
+    }
+
+}
+
+class Punctuation {
+
+    private final StringBuilder punctuation;
+
+    public Punctuation(StringBuilder punctuation) {
+        this.punctuation = punctuation;
+    }
+
+    public StringBuilder getPunctuation() {
+        return punctuation;
+    }
+} 

src/_12_Закревський_Данило_Сергійович/lab6/SixthLab.java

@@ -0,0 +1,138 @@
+import java.util.Scanner;
+import java.util.Arrays;
+import java.util.Comparator;
+
+public class SixthLab {
+    
+    public static int sumOfPassangers(Train[] trains) {
+        int sum = 0;
+        for (Train train: trains) {
+            sum += train.getCapacity();
+        }
+        return sum;
+    }
+
+    public static float sumOfLuggage(Train[] trains) {
+        float sum = 0.0f;
+        for (Train train: trains) {
+            sum += train.getLuggage();
+        }
+        return sum;
+    }
+    
+    public static void main(String[] args) {
+        Scanner scn = new Scanner(System.in);
+        Intercity intercity = new Intercity(2, "intercity", 57, 2.0f);
+        SV sv = new SV(3, "sv", 20, 1.3f);
+        Compartment compartment = new Compartment(2, "compartment", 40, 2.5f);
+        Plackart plackart = new Plackart(1, "plackart", 52, 1.8f);
+        Train[] trainCars = {intercity, sv, compartment, plackart};
+
+        System.out.println("List of train cars: ");
+        for (Train car: trainCars) {
+            System.out.println(car);
+        }
+
+        Arrays.sort(trainCars, new sortByComfort());
+        System.out.println("\nSorted list by comfort level: ");
+        for (Train car: trainCars) {
+            System.out.println(car);
+        }
+
+        System.out.printf("\n\nThe total number of passengers on the train - %d.\n", sumOfPassangers(trainCars));
+        System.out.printf("The total amount of train baggage - %.1f tons.", sumOfLuggage(trainCars));
+
+        System.out.println("\n\nFinding the train car by number of passengers");
+        System.out.print("Enter the lower number: ");
+        int lower = scn.nextInt();
+        System.out.print("Enter the extreme number: ");
+        int extreme = scn.nextInt();
+        boolean flag = false;
+        for (Train car: trainCars) {
+            int amount = car.getCapacity();
+            if(amount >= lower && amount <= extreme) {
+                System.out.println(car);
+                flag = true;
+            }
+        }
+        if (!flag) {
+            System.out.println("There is no such train car");
+        }
+        scn.close();
+    }
+}
+
+class Train {
+    private int comfortLevel;
+    private String type;
+    private int capacity;
+    private float luggage;
+
+    public Train(int comfortLevel, String type, int capacity, float luggage) {
+        this.comfortLevel = comfortLevel;
+        this.type = type;
+        this.capacity = capacity;
+        this.luggage = luggage;
+    }
+
+    public int getComfortLevel() {
+        return comfortLevel;
+    }
+
+    public String getType() {
+        return type;
+    }
+    
+    public int getCapacity() {
+        return capacity;
+    }
+
+    public float getLuggage() {
+        return luggage;
+    }
+
+    @Override
+    public String toString() {
+        return "Train : " + 
+                " Type: " + type +
+                ". Comfort level: " + comfortLevel +
+                ". Capacity: " + capacity + 
+                ". Luggage: " + luggage + " tons.";
+    }
+}
+
+
+class Intercity extends Train {
+
+    public Intercity(int comfortLevel, String type, int capacity, float luggage) {
+        super(comfortLevel, type, capacity, luggage);
+    }
+}
+
+class SV extends Train {
+
+    public SV(int comfortLevel, String type, int capacity, float luggage) {
+        super(comfortLevel, type, capacity, luggage);
+    }
+}
+
+class Compartment extends Train {
+
+    public Compartment(int comfortLevel, String type, int capacity, float luggage) {
+        super(comfortLevel, type, capacity, luggage);
+    }
+}
+
+class Plackart extends Train {
+
+    public Plackart(int comfortLevel, String type, int capacity, float luggage) {
+        super(comfortLevel, type, capacity, luggage);
+    }
+}
+
+class sortByComfort implements Comparator<Train> {
+    
+    public int compare(Train a, Train b){
+        return a.getComfortLevel() - b.getComfortLevel();
+    }
+}

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/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);
+    }
+}