Added lab6

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-18" project-jdk-type="JavaSDK">
+  <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>

src/Lab1/Lab1.java

@@ -1,140 +0,0 @@
-package Lab1;
-
-import java.util.InputMismatchException;
-import java.util.Scanner;
-
-public class Lab1 {
-    public static void main(String[] args) {
-        int C2, C3, C5, C7; // creating variables
-        int numBook = 2401; // default value of scorebook
-
-        Scanner sc = new Scanner(System.in); // scanner creating for inputing values from keyboard
-        System.out.println("By default number of scorebook is 2401. \nEnter to skip or input new value: ");
-        String input = sc.nextLine();
-
-        if (!input.equals("")) { // try-catch for checking correct inputing of value
-            try {
-                numBook = Math.abs(Integer.parseInt(input)); // scorebook can be only unsigned
-            } catch (NumberFormatException e) {
-                System.out.println("Invalid input. Using default value 2401"); // printing that will be used default value
-            }
-        }
-
-        String[] operations1 = {"+", "-"};//
-        String[] operations2 = {"*", "/", "%", "+", "-"}; //  String array for choosing operations
-        String[] operations3 = {"byte", "short", "int", "long", "char", "float", "double"}; //
-        // determining variables
-        C2 = numBook % 2;
-        C3 = numBook % 3;
-        C5 = numBook % 5;
-        C7 = numBook % 7;
-
-        String O1 = operations1[C2];
-        int C = C3;
-        String O2 = operations2[C5];
-        String O3 = operations3[C7];
-
-        System.out.println("C2 is: " + C2 + ", operation is: " + O1); //
-        System.out.println("C3 is: " + C);                            // printing parameters that user got
-        System.out.println("C5 is: " + C5 + ", operation is: " + O2); //
-        System.out.println("C7 is: " + C7 + ", Type of indexes i and j is: " + O3); //
-
-        Number i = 0; // creating objects i j of (abstract)superclass Number
-        Number j = 0; //
-
-
-        System.out.println("\nEnter a value for i and j in the " + O3 + " type: ");
-
-        switch (O3) { // Choosing type of i and j by C7
-            case "byte" -> {
-                try {
-                    i = sc.nextByte();
-                    j = sc.nextByte();
-                } catch (InputMismatchException e) {
-                    System.out.println("Invalid input. Please enter a valid byte value.");
-                    sc.nextLine();
-                }
-            }
-            case "short" -> {
-                i = sc.nextShort();
-                j = sc.nextShort();
-            }
-            case "int" -> {
-                i = sc.nextInt();
-                j = sc.nextInt();
-            }
-            case "long" -> {
-                i = sc.nextLong();
-                j = sc.nextLong();
-            }
-            case "char" -> {
-                System.out.println("Read only first character!");
-                i = (int) sc.next().charAt(0);
-                j = (int) sc.next().charAt(0);
-            }
-            case "float" -> {
-                i = sc.nextFloat();
-                j = sc.nextFloat();
-            }
-            case "double" -> {
-                i = sc.nextDouble();
-                j = sc.nextDouble();
-            }
-
-        }
-
-
-        System.out.println("The value of the created variables is: " + i + " and " + j);
-
-
-
-        class Sum { // creating class Sum
-            int n, m;
-            double i, j;
-
-            public Sum(double i, double j, int n, int m) { // Constructor to initialize all variables
-                this.i = i;
-                this.j = j;
-                this.n = n;
-                this.m = m;
-            }
-
-            public void calc() { // create method for our class
-                double sum = 0, result = 0, result2 = 0;
-                if ((O1.equals("-") && i + n >= C && i <= C) || (C == 0 && i == 0)) { // exclude situations
-                    System.out.println("dividing by zero!");                          // with dividing by 0
-                } else if (i > n || j > m) {
-                    System.out.println("i or j greater than n or m");
-                } else {
-                    for (double b = i; b <= n; b++) {
-                        for (double a = j; a <= m; a++) {
-                            switch (O2) {
-                                case "+" -> result = b + a;
-                                case "-" -> result = b - a;
-                                case "*" -> result = b * a;
-                                case "/" -> result = b / a;
-                                case "%" -> result = b % a;
-                            }
-                            switch (O1) {
-                                case "+" -> result2 = b + C;
-                                case "-" -> result2 = b - C;
-                            }
-                            sum += result / result2;
-                        }
-                    }
-                    System.out.println("Sum is: " + sum);
-                }
-            }
-        }
-
-        System.out.print("Enter value for n and m: \n");
-
-        int n = sc.nextInt();
-        int m = sc.nextInt();
-
-        Sum sum = new Sum(i.doubleValue(), j.doubleValue(), n, m); // creating new instance of Sum class
-        // .doubleValue() converting our variables to double
-        sum.calc();
-        sc.close();
-    }
-}

src/Lab2/Lab2.java

@@ -1,153 +0,0 @@
-package Lab2;
-
-import java.util.Scanner;
-import java.util.Random;
-
-public class Lab2 {
-    public static void main(String[] args) {
-        final int C5, C7, C11, NumBook;
-        NumBook = 2401;
-        C5 = NumBook % 5;
-        C7 = NumBook % 7;
-        C11 = NumBook % 11;
-        System.out.println("-----------------------------------------------------");
-        System.out.println("C5 is: " + C5 + " - act with martix is C=Bт");
-        System.out.println("C7 is: " + C7 + " - type of elements is double");
-        System.out.println("C11 is: " + C11 + " - calculate the sum of the largest elements\n" +
-                "of each row of the matrix");
-        System.out.println("-----------------------------------------------------");
-        int Mside = 0;
-        int Nside = 0;
-        int Choose;
-        double MaxSum = 0;
-        Random rand = new Random();
-        Scanner sc = new Scanner(System.in);
-
-        while (true) {
-            try {
-                System.out.print("Enter random or handle input(1 or 0): ");
-                Choose = Math.abs(Integer.parseInt(sc.nextLine()));
-                if (Choose == 1 || Choose == 0) {
-                    break;
-                }
-            } catch (NumberFormatException e) {
-                System.out.println("Invalid input. Please enter an integer.");
-            }
-
-        }
-        while (true) {
-            try {
-                System.out.print("Enter number of rows: ");
-                Mside = Math.abs(Integer.parseInt(sc.nextLine()));
-                if (Mside <= 0) {
-                    System.out.println("Invalid input. Number of rows must be greater than 0");
-
-                } else {
-                    break;
-                }
-            } catch (NumberFormatException e) {
-                System.out.println("Invalid input. Please enter an integer.");
-            }
-        }
-
-        while (true) {
-            try {
-                System.out.print("Enter number of columns: ");
-                Nside = Math.abs(Integer.parseInt(sc.nextLine()));
-                if (Nside <= 0) {
-                    System.out.println("Invalid input. Number of columns must be greater than 0");
-
-                } else {
-                    break;
-                }
-            } catch (NumberFormatException e) {
-                System.out.println("Invalid input. Please enter an integer.");
-            }
-        }
-        final int lenghtMaxElements = 5;
-        double[][] CArray = new double[Mside][Nside];
-        double[][] TransposedArray = new double[Nside][Mside];
-        double[][] MaxElements = new double[Nside][lenghtMaxElements];
-        if (Choose == 1) {
-            for (int i = 0; i < Mside; i++) {
-                for (int j = 0; j < Nside; j++) {
-                    CArray[i][j] = rand.nextDouble(-100, 100);
-                }
-
-            }
-        }
-        if (Choose == 0) {
-            for (int i = 0; i < Mside; i++) {
-                for (int j = 0; j < Nside; j++) {
-                    while (true) {
-                        try {
-                            System.out.printf("Enter the element at position (%d,%d): ", i + 1, j + 1);
-                            CArray[i][j] = Double.parseDouble(sc.nextLine());
-                            break;
-                        } catch (NumberFormatException e) {
-                            System.out.println("Invalid input. Please enter a valid number.");
-                        }
-                    }
-                }
-            }
-        }
-        for (int i = 0; i < Mside; i++) {
-            for (int j = 0; j < Nside; j++) {
-                System.out.printf("%8.2f", CArray[i][j]);
-            }
-            System.out.println();
-        }
-
-        for (int i = 0; i < Nside; i++) {
-            for (int j = 0; j < Mside; j++) {
-                TransposedArray[i][j] = CArray[j][i];
-            }
-        }
-        System.out.println("Transposed array is:");
-        int row, cols;
-        for (row = 0; row < Nside; row++) {
-            for (cols = 0; cols < Mside; cols++) {
-                System.out.printf("%8.2f", TransposedArray[row][cols]);
-
-            }
-            System.out.println();
-        }
-
-        for (int i = 0; i < Nside; i++) {
-            MaxElements[i][0] = TransposedArray[i][0];
-
-            for (int j = 1; j < Mside; j++) {
-                MaxElements[i][1] = i;
-                if (TransposedArray[i][j] > MaxElements[i][0]) {
-                    MaxElements[i][0] = TransposedArray[i][j];
-                    MaxElements[i][2] = j;
-
-
-                } else if (TransposedArray[i][j] == MaxElements[i][0]) {
-                    MaxElements[i][3] = MaxElements[i][0];
-                    MaxElements[i][4] = 1;
-
-                }
-
-
-            }
-            //System.out.println(MaxElements[i][0] +" "+ MaxElements[i][1] +" "+ MaxElements[i][2] + " " + MaxElements[i][3] + " " + MaxElements[i][4]);
-            //code i used for debug
-        }
-        System.out.println("Max elements for each row:");
-        if (Mside == 1) {
-            System.out.println("I can`t find max element for mx1 matrix");
-
-        } else {
-            for (int i = 0; i < Nside; i++) {
-                if (MaxElements[i][0] == MaxElements[i][3] && MaxElements[i][4] == 1) {
-                    System.out.printf("In row %1.0f does not exist a max element\n", MaxElements[i][1] + 1);
-                } else {
-                    System.out.printf("%8.2f is max value and his coordinate: (%1.0f, %1.0f)\n", MaxElements[i][0], MaxElements[i][1] + 1, MaxElements[i][2] + 1);
-                    MaxSum += MaxElements[i][0];
-                }
-            }
-            System.out.printf("Sum of elements with max values is: %.2f\n", MaxSum);
-        }
-    }
-}

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/lab1.java

@@ -0,0 +1,45 @@
+import java.util.Scanner;
+public class lab1 {
+    public static void main(String[] args){
+        Scanner scanner = new Scanner(System.in);
+
+        // 2131 % 7 = 3; C7 = long
+        long n, m, a, b;
+        float result, sum;
+        while(true) {
+            try {
+                System.out.println("Введіть n типу long:");
+                n = scanner.nextLong();
+                System.out.println("Введіть m типу long:");
+                m  = scanner.nextLong();
+                System.out.println("Введіть a типу long:");
+                a  = scanner.nextLong();
+                System.out.println("Введіть b типу long:");
+                b  = scanner.nextLong();
+                break;
+            }catch(Exception e){
+                scanner.nextLine();
+                System.out.println("Введене неправильне число");
+            }
+        }
+
+        // 2131 % 5 = 1; O2 = /
+        // 2131 % 2 = 1; O1 = -
+        // 2131 % 3 = 1; C = 1
+        result = 0;
+        byte C = 1;
+        for(long i = a; i <= n; i++){
+            sum = 0;
+            for(long j = b; j <= m; j++){
+                if (i - C == 0 || j == 0){
+                    System.out.println("Помилка ділення на 0");
+                    System.exit(0);
+                }
+                sum += (float) (i/j)/(i-C);
+            }
+            result += sum;
+        }
+        System.out.println(result);
+
+    }
+}

src/lab2.java

@@ -0,0 +1,51 @@
+public class lab2 {
+    public static void main(String[] args){
+
+        // 2131 % 7 = 3; C7 = int
+
+        int[][] matrix = {
+                {1,2,3,4,5},
+                {1,3,5,7,9},
+                {10,1,20,2,5}
+        };
+
+        int rows = matrix.length;
+        int column = matrix[0].length;
+        System.out.println("Матриця:");
+        for(int i = 0; i < rows; i++){
+            for (int j = 0; j < column; j++){
+                System.out.print(matrix[i][j]+" ");
+            }
+            System.out.println();
+        }
+        System.out.println();
+        // 2131 % 5 = 1; C5 = транспортування;
+
+        int[][] transportMatrix = new int[column][rows];
+
+
+        for(int i = 0; i < rows; i++){
+             for(int j = 0; j < column; j++){
+                 transportMatrix[j][i] = matrix[i][j];
+             }
+        }
+        System.out.println("Транспонована матриця:");
+        for (int i = 0; i < column; i++){
+            for (int j = 0; j < rows; j++){
+                System.out.print(transportMatrix[i][j]+" ");
+            }
+            System.out.println();
+        }
+        System.out.println();
+
+        // 2131 % 11 = 8; C11 = Знайти середнє значення елементів кожного рядка матриці;
+        int sum;
+        for(int i = 0; i < rows; i++){
+            sum = 0;
+            for(int j = 0; j < column; j++){
+                sum += matrix[i][j];
+            }
+            System.out.println("Середнє арифметичне " + (i+1) + " строки = " + (float)sum/column);
+        }
+    }
+}

src/lab3.js

@@ -0,0 +1,23 @@
+//C17 = 2131 % 17 = 6; Відсортувати слова заданого тексту за зростанням кількості голосних літер.
+
+import create from 'prompt-sync';
+const prompt = create();
+
+class Sentence {
+  constructor() {
+    this.sentence = prompt("Input sentence: ");
+  }
+  sort() {
+    const words = this.sentence.split(/[\s.?!,;]/).filter((word) => word);
+    const vowels = /[AaEeiOoUuYy]/g
+    const sortedWords = words.sort((first, second) => {
+      const vowelsOfFirstWord = first.match(vowels)? first.match(vowels): [];
+      const vowelsOfSecondWord =  second.match(vowels)? second.match(vowels): [];
+      return  vowelsOfFirstWord.length-vowelsOfSecondWord.length;
+    });
+    return sortedWords.join(' ');
+  }
+}
+
+const sentence = new Sentence;
+console.log(sentence.sort())

src/lab4.js

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+//C11 = 2131%11 = 8; Визначити клас меблі, який складається як мінімум з 5-и полів.
+
+//Створимо клас меблів
+class Furniture{
+  constructor({model, width, height, length, price}) {     //об'єкт класа буде створений на основі об'єкта для зручості, тому використовуємо деструктороване присвоєння, щоб не брати зайве.
+    this.model = model;
+    this.width = width;
+    this.height = height;
+    this.length = length;
+    this.price = price;
+  }
+}
+
+//Створимо об'єкти майбутніх об'єктів класу меблі
+
+const chair = {
+  model: 'chair',
+  width: 1,
+  length: 1,
+  height: 1,
+  price: 500,
+};
+
+const table = {
+  model: 'table',
+  width: 3,
+  length: 2,
+  height: 1.5,
+  price: 1000,
+};
+
+const wardrobe = {
+  model: 'wardrobe',
+  width: 5,
+  length: 1,
+  height: 3,
+  price: 750,
+};
+
+//Створимо масив що складається з об'єктів класу
+const furniture = [new Furniture(wardrobe), new Furniture(chair), new Furniture(table)];
+
+//Відсрортуємо масив за алфавітним порядком;
+console.log(furniture.sort((first, second) => first.model > second.model ? 1 : first.model < second.model ? -1 : 0));
+//Відсортуємл масив за ціною за спаданням
+console.log(furniture.sort((first, second) => second.price - first.price));

src/lab5.js

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+class Text {
+ constructor(text) {
+   this.text = [];
+   const sentences = text.split(/[.?!;]/).filter((sentence) => sentence);
+   for (const sentence of sentences) {
+      this.text.push(new Sentence(sentence))
+   }
+ }
+
+ getText() {
+   let text = '';
+   for (const sentence of this.text) {
+     text += sentence.getSentence() + '. ';
+   }
+   return text;
+ }
+
+ getSortedText() {
+   let words = [];
+   const vowels = /[AaEeiOoUuYy]/g;
+
+   for (const sentence of this.text) {
+     words = words.concat(sentence.getWords());
+   }
+   const sortedWords = words.sort((first, second) => {
+     const vowelsOfFirstWord = first.match(vowels)? first.match(vowels): [];
+     const vowelsOfSecondWord =  second.match(vowels)? second.match(vowels): [];
+     return  vowelsOfFirstWord.length-vowelsOfSecondWord.length;
+   });
+   return sortedWords.join(' ');
+ }
+}
+
+class Sentence {
+  constructor(sentence) {
+    this.sentence = [];
+    const words = sentence.split(/[\s,:]/).filter((word) => word);
+    for (const word of words) {
+      this.sentence.push(new Word(word));
+    }
+  }
+
+  getSentence() {
+    let sentence = '';
+    for (const word of this.sentence) {
+      sentence += word.getWord();
+      if ( this.sentence[this.sentence.length-1] !== word) sentence += ' ';
+    }
+    return sentence;
+  }
+
+  getWords() {
+    let words = [];
+    for (const word of this.sentence) {
+      words.push(word.getWord());
+    }
+    return words;
+  }
+}
+
+class Word {
+  constructor(word) {
+    this.word = [];
+    for (const symbol of word) {
+      if (/[A-Za-z]/.test(symbol)){
+        this.word.push(new Letter(symbol));
+      } else if (/[0-9]/.test(symbol)) {
+        this.word.push(new Number(symbol));
+      }
+    }
+  }
+
+  getWord() {
+    let word = '';
+    for (const symbol of this.word) {
+      word += symbol.getSymbol();
+    }
+    return word
+  }
+}
+
+class Letter {
+  constructor(letter) {
+    this.letter = letter;
+  }
+
+  getSymbol() {
+    return this.letter;
+  }
+}
+
+class Number {
+  constructor(number) {
+    this.number = number;
+  }
+
+  getSymbol() {
+    return this.number;
+  }
+}
+const text = new Text('In late September or October, Martina elevated Constans to co-emperor, but also raised Heraclonas\'s brother Tiberius to co-emperor alongside them. Despite these overtures, Valentinus entered Constantinople shortly thereafter, deposed Heraclonas and Martina, and then elevated Constans to sole emperor. Heraclonas, Martina, Tiberius, and Martinus are said by John of Nikiu to have been escorted forth with insolence. Valentinus had Martinus nose cut off, emasculated him, and then banished his family to Rhodes, where they stayed until their deaths. According to some sources, the stress of the surgery killed Martinus immediately.');
+console.log(text.getText());
+console.log('\n' + text.getSortedText());

src/lab6.js

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+console.log(2131 % 13)
+
+class Room {
+  constructor(price, ...toys) {
+    this.toys = toys;
+    this.price = price;
+    if (this.getCurrentPrice() > price) throw new SyntaxError('We haven`t money for this');
+  }
+
+  addToy(toy) {
+    if (this.getCurrentPrice() + toy.getPrice() <= this.price) this.toys.push(toy);
+    else throw new SyntaxError('We haven`t money for this');
+  }
+
+  getCurrentPrice() {
+    let sum = 0;
+    for (const toy of this.toys) {
+      sum += toy.getPrice();
+    }
+    return sum;
+  }
+
+  getSortedToysByPrice() {
+    const sortedToys = this.toys.copyWithin();
+    return sortedToys.sort((firstToy, secondToy) => {
+      return firstToy.getPrice() - secondToy.getPrice();
+    });
+  }
+
+  getToyByPrice(lowerPrice, upperPrice) {
+    return this.toys.find((toy) => lowerPrice <= toy.getPrice() && toy.getPrice() <= upperPrice);
+  }
+}
+class Toy {
+
+  constructor(type, price, group) {
+    this.type = type;
+    this.price = price;
+    this.group = group;
+  }
+
+  getPrice() {
+    return this.price;
+  }
+}
+
+class Car extends Toy {
+  constructor(price, group) {
+    super('car', price, group);
+  }
+}
+
+class Ball extends Toy {
+  constructor(price, group) {
+    super('ball', price, group);
+  }
+}
+
+class Doll extends Toy {
+  constructor(price, group) {
+    super('doll', price, group);
+  }
+}
+
+
+const doll = new Doll(200, 'middle');
+const ball = new Ball(150, 'young');
+const car = new Car(300, 'old');
+const room = new Room(1000, doll, ball, car);
+console.log(room.getSortedToysByPrice())
+console.log(room.getToyByPrice(201, 301));

src/test/A.java

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+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

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+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);
+    }
+}