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_17" default="true" project-jdk-name="17" 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/IO_24/_02_Бондаренко_Тарас_Андрійович/lab1/Lab1.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab2/Lab2.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab3/Lab3.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab4/Boat.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab4/Lab4.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Lab5.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Letter.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Punctuation.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Sentence.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/SentenceElement.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Text.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab5/Word.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Comfort.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Economy.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Lab6.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Optimal.java

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

src/IO_24/_02_Бондаренко_Тарас_Андрійович/lab6/Tariff.java

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

src/Main.java

@@ -1,8 +1,35 @@
 public class Main {
     public static void main(String[] args) {
-        System.out.println(args[1]);
+        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() {

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

@@ -0,0 +1,46 @@
+//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

@@ -0,0 +1,103 @@
+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

@@ -0,0 +1,71 @@
+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));