Merge branch 'ІО-22/20-Папко-Максим' of https://github.com/ASDjonok/OOP_IO-2x_2023 into ІО-22/20-Папко-Максим

This reverts commit c95a243c84.

.gitignore

@@ -1,4 +0,0 @@
-# Project exclude paths
-/out/
-# Auto detect text files and perform LF normalization
-* text=auto

.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/OOP_IO-2x_2023.iml

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

.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

.idea/modules.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/OOP_IO-2x_2023.iml" filepath="$PROJECT_DIR$/.idea/OOP_IO-2x_2023.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab1/lab1.iml" filepath="$PROJECT_DIR$/lab1/lab1.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab2/lab2.iml" filepath="$PROJECT_DIR$/lab2/lab2.iml" />
-      <module fileurl="file://$PROJECT_DIR$/lab3/lab3.iml" filepath="$PROJECT_DIR$/lab3/lab3.iml" />
-    </modules>
-  </component>
-</project>

.idea/vcs.xml

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

Lab2/Program.cs

@@ -0,0 +1,32 @@
+using System;
+
+public class Laba2
+{
+    
+
+    public static void Main(string[] args)
+    {
+        const int a = 2;
+        int[][] b = new[]
+        {
+            new int[] { 1, 2, 8 },
+            new int[] { 3, 4, 5 },
+            new int[] { 6, 7, 9 }
+        };
+        calculation(b, a);
+    }
+
+    private static int[][] calculation(int[][] b, int a)
+    {
+        int[][]c = new int[b.Length][b[0].Length]; //недопустимий специфікатор рангу: вимагається "," або "]";
+        for (int i = 0; i < b.Length; i++)
+        {
+            c[i] = new int[b[i].Length];
+            for (int j = 0; j < b[i].Length; j++)
+            {
+                c[i][j] = b[i][j] * a;
+            }
+        }
+        return c;
+    }
+}

Lab3/Lab3/Lab3/Program.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+
+class Lab3
+{
+    public static void Main(string[] args)
+    {
+        string text = "Вухатий великий синiй слон. Яблуко в саду. Зелене яблуко? Груша. Жовта слива висить у саду!";
+        Console.WriteLine(text );
+
+        // розділяємо текст на окремі речення
+        string[] textSplit = text.Split(new[] { '.', '?', '!' }, StringSplitOptions.RemoveEmptyEntries);
+
+        // обчислюємо кількість слів у кожному реченні та створюємо масив з кількістю слів у реченнях
+        int[] amountOfWords = new int[textSplit.Length];
+        for (int i = 0; i < textSplit.Length; i++)
+        {
+            string[] words = textSplit[i].Trim().Split(' ');
+            amountOfWords[i] = words.Length;
+        }
+
+        // створюємо Dictionary, де ключ - кількість слів у реченні, а значення - речення
+        Dictionary<int, string> sentenceDictionary = new Dictionary<int, string>();
+        for (int i = 0; i < textSplit.Length; i++)
+        {
+            sentenceDictionary.Add(amountOfWords[i], textSplit[i]);
+        }
+        var sortedDict = sentenceDictionary.OrderBy(x => x.Key).ToDictionary(x => x.Value, x => x.Key);
+
+
+        Console.WriteLine(String.Join(";", sortedDict.Keys));
+    }
+}

README.md

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

lab1/FunctionCalculator/.idea/.gitignore

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

lab1/FunctionCalculator/.idea/.name

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

lab1/FunctionCalculator/.idea/misc.xml

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

lab1/FunctionCalculator/.idea/modules.xml

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

lab1/FunctionCalculator/FunctionCalculator.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>

lab1/FunctionCalculator/src/Main.java

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

lab1/lab1.iml

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

lab2/Matrix/.idea/.gitignore

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

lab2/Matrix/.idea/.name

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

lab2/Matrix/.idea/misc.xml

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

lab2/Matrix/.idea/modules.xml

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

lab2/Matrix/Matrix.iml

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

lab2/Matrix/src/Main.java

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

lab2/lab2.iml

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

lab3/OperationsStrings/.idea/.gitignore

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

lab3/OperationsStrings/.idea/.name

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

lab3/OperationsStrings/.idea/misc.xml

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

lab3/OperationsStrings/.idea/modules.xml

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

lab3/OperationsStrings/OperationsStrings.iml

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

lab3/OperationsStrings/src/Main.java

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

lab3/lab3.iml

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

lab4/.idea/.gitignore

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

lab4/.idea/lab4.iml

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

lab4/.idea/modules.xml

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

lab4/.idea/vcs.xml

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

lab4/EducationalInstitution/.idea/.gitignore

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

lab4/EducationalInstitution/.idea/misc.xml

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

lab4/EducationalInstitution/.idea/modules.xml

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

lab4/EducationalInstitution/EducationalInstitution.iml

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

lab4/untitled/.idea/.gitignore

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

lab4/untitled/.idea/misc.xml

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

lab4/untitled/.idea/modules.xml

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

lab4/untitled/src/Main.java

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

lab4/untitled/src/SeaShip.java

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

lab4/untitled/untitled.iml

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

lab5/untitled/.idea/.gitignore

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

lab5/untitled/.idea/misc.xml

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

lab5/untitled/.idea/modules.xml

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

lab5/untitled/src/Main.java

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

lab5/untitled/untitled.iml

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

lab6/untitled/.idea/.gitignore

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

lab6/untitled/.idea/misc.xml

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

lab6/untitled/.idea/modules.xml

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

lab6/untitled/src/Main.java

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

lab6/untitled/untitled.iml

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

src/Lab1.java

@@ -0,0 +1,58 @@
+public class Lab1 {
+    public static void main(String[] args) {
+//        char c = 'a' + '1';
+        char c = 97;
+//        char c = '1';
+        System.out.println(c);
+        System.out.println((int) c);
+        c++;
+        System.out.println(c);
+        System.out.println((int) c);
+        System.out.println((double)'1'/'3');
+
+//        System.out.println( (double) 0 / 0 );
+//        System.out.println( Math.sqrt(-1) );
+        double s = 0;
+        /*for (int i = 1; i <= 3; i++) { // 1) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> i = 1, 2) <20><><EFBFBD><EFBFBD> <20> <= 3, 3) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䳿 <20> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>,
+            System.out.println(i);     // 4) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><> 1, 5) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> 2
+//            s = s + i;
+            s += i;
+        }*/
+        /*int[] array = new int[2];
+        for (int i = 0; i < array.length; i++) {
+
+        }*/
+        final int A = -3;
+        final int B = 0;
+        final int N = 2;
+        final int M = 2;
+
+        final int C = 1;
+//        boolean wasDivisionByZero = false;
+//        todo char
+//        todo[clear code] think about avoiding brackets
+        if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M)) {
+            System.out.println("Division by zero!");
+            return;
+        }
+/*myLabel:*/for (int i = A; i <= N /*&& !wasDivisionByZero*/; i++) {
+            /*if (i + C == 0) { // todo optimize
+                System.out.println("Division by zero!");
+                wasDivisionByZero = true;
+                break; //todo flag vs return;
+            }*/
+            for (int j = B; j <= M; j++) {
+                /*if (j == 0) {
+                    System.out.println("Division by zero!");
+                    return;
+//                    wasDivisionByZero = true;
+//                    break myLabel;
+                }*/
+                s += (double) (i / j) / (i + C);
+            }
+        }
+//        if (!wasDivisionByZero) {
+            System.out.println("s = " + s);
+//        }
+    }
+}

src/Lab2.java

@@ -0,0 +1,26 @@
+public class Lab2 {
+    public static void main(String[] args) {
+        int[] array = {1, 2, 3};
+        /*for (int i = 0; i < array.length; i++) {
+            if (i % 2 == 0) {
+                System.out.println("!" + array[i]);
+            } else {
+                System.out.println("?" + array[i]);
+            }
+        }*/
+
+        for (int i = 0; i < array.length; i+=2) {
+            System.out.println("!" + array[i]);
+        }
+
+        for (int i = 1; i < array.length; i+=2) {
+            System.out.println("?" + array[i]);
+        }
+
+//        зубчасті матриці
+        int[][] matrix = {
+                {1, 2},
+                {3}
+        };
+    }
+}

src/Main.java

@@ -0,0 +1,42 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println(args[2]);
+        System.out.println("Hello world!");
+//        System.out.println(1);
+
+        int a = 1;
+        int b = 2;
+        int c = 1;
+        int d = 1;
+
+        System.out.println(2&1);
+        System.out.println(2|1);
+        int aa = 2;
+
+        /*if (aa) {
+
+        }*/
+
+//        System.out.println("a"&"b");
+        System.out.println('a'&'b');
+
+        if ((a > b) & MyBooleanMethod()) {
+            System.out.println("?????????????????????????");
+        }
+
+
+    }
+
+    static boolean MyBooleanMethod() {
+        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+        return true;
+    }
+
+    void myFunction() {
+
+    }
+
+    int myFunction2() {
+        return 1;
+    }
+}

src/encapsulationInheritancePolymorphism/Encapsulation.java

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

src/encapsulationInheritancePolymorphism/EncapsulationInheritancePolymorphism.java

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

src/encapsulationInheritancePolymorphism/Main.java

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

src/encapsulationInheritancePolymorphism/Student.java

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

src/encapsulationInheritancePolymorphism/inheritance/ElectricEngine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/inheritance/Engine.java

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

src/encapsulationInheritancePolymorphism/inheritance/FuelEngine.java

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

src/encapsulationInheritancePolymorphism/inheritance/Main.java

@@ -0,0 +1,8 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class Main {
+    public static void main(String[] args) {
+        ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        FuelEngine fuelEngine = new FuelEngine();
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/ElectricEngine.java

@@ -0,0 +1,14 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+
+    @Override
+    public int getPower() {
+        return 20;
+    }
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/polymorphism/Engine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class Engine {
+    private int power;
+
+    public int getPower() {
+        return power;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/FuelEngine.java

@@ -0,0 +1,10 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class FuelEngine extends Engine {
+    private String fuelType;
+
+    @Override
+    public int getPower() {
+        return 50;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/Main.java

@@ -0,0 +1,38 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
+import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
+
+public class Main {
+    public static void main(String[] args) {
+        /*encapsulationInheritancePolymorphism.inheritance.*/ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        /*encapsulationInheritancePolymorphism.inheritance.*/FuelEngine fuelEngine = new FuelEngine();
+
+        Engine engine1 = fuelEngine;
+
+        Engine[] engines = {
+                electricEngine,
+                fuelEngine
+        };
+
+        for (Engine engine : engines) {
+            System.out.println(engine.getPower());
+        }
+
+        /*for (int i = 0; i < engines.length; i++) {
+            System.out.println(engines[i].getPower());
+        }*/
+
+//        +
+        int a = 1;
+        int b = 1;
+        int c = a + b;
+        System.out.println(c);
+
+
+        String sA = "1";
+        String sB = "1";
+        String sC = sA + sB;
+        System.out.println(sC);
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/ElectricEngine.java

@@ -0,0 +1,19 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+    private int chargeLevel = 9;
+    private int criticalChargeLevel = 10;
+    private float coefficientCriticalPowerCut = 0.1f;
+
+    @Override
+    public int getPower() {
+        return chargeLevel > criticalChargeLevel
+                ? super.getPower()
+                : (int) (super.getPower() * coefficientCriticalPowerCut);
+    }
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Engine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class Engine {
+    private int power = 100;
+
+    public int getPower() {
+        return power;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/FuelEngine.java

@@ -0,0 +1,10 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class FuelEngine extends Engine {
+    private String fuelType;
+
+    /*public int getPower() {
+        return 50;
+    }*/
+
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Main.java

@@ -0,0 +1,28 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
+import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
+
+public class Main {
+    public static void main(String[] args) {
+        /*encapsulationInheritancePolymorphism.inheritance.*/
+        ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        /*encapsulationInheritancePolymorphism.inheritance.*/
+        FuelEngine fuelEngine = new FuelEngine();
+
+        Engine engine1 = fuelEngine;
+
+        Engine[] engines = {
+                electricEngine,
+                fuelEngine
+        };
+
+        for (Engine engine : engines) {
+            System.out.println(engine.getPower());
+        }
+
+        /*for (int i = 0; i < engines.length; i++) {
+            System.out.println(engines[i].getPower());
+        }*/
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/overload/MyClassForOverloadExample.java

@@ -0,0 +1,17 @@
+package encapsulationInheritancePolymorphism.polymorphism.overload;
+
+public class MyClassForOverloadExample {
+    void myMethod(int a) {
+        System.out.println("Integer: " + a);
+    }
+
+    void myMethod(double a) {
+        System.out.println("Double: " + a);
+    }
+
+    public static void main(String[] args) {
+        MyClassForOverloadExample overload = new MyClassForOverloadExample();
+        overload.myMethod(1);
+        overload.myMethod(0.1);
+    }
+}

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;
+    }
+}