Added 5 lab

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="openjdk-18" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-20" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

src/Lab1.java

@@ -1,58 +0,0 @@
-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) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> i = 1, 2) <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <= 3, 3) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䳿 <EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
-            System.out.println(i);     // 4) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD> 1, 5) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><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

@@ -1,139 +0,0 @@
-public class Lab2 {
-    public static void main(String[] args) {
-        final int A = 2;
-        final int[][] MATRIX_B = {
-                {1, 202, 1, 1, 202, 3, 1, 202, 3,},
-                {1, 202, 1, 1, 202, 3, 1, 202, 3, 4},
-                {1, 1,   3, 1, 202, 3, 1, 202, 3,},
-//                {4, 5, 6,},
-        };
-
-        int[][] MATRIX_C = multiplication(A, MATRIX_B);
-
-        print(MATRIX_C);
-
-//        System.out.println("Sum of smallest elements in every column: " + sumOfSmallestElementsInEveryColumn(MATRIX_C));
-        try {
-            System.out.println("Sum of smallest elements in every column: " + sumOfSmallestElementsInEveryColumnRenew(MATRIX_C));
-            System.out.println("???...");
-        } catch (Exception e) {
-            System.err.println(e.getMessage());
-        }
-
-        System.out.println("I'm still working...");
-
-        /*int[] array = {1, 2, 3};
-        int[] array2 = new int[3];
-        Object[] array3 = new String[3];
-        System.out.println(array3[0]); //nothing, trash from the memory, null || null
-        System.out.println(array2[0]); //nothing, trash from the memory, null || 0
-        System.out.println(array[0]); // || 1
-
-        int[][] matrix2 = new int[2][3];
-        matrix2[0] = new int[2];
-        matrix2[1] = new int[1];
-        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}
-        };
-
-//        C=a×B, a - const
-
-
-//        final int[][] MATRIX_C = int;
-
-
-        MATRIX_B[0][0] = 2;
-        MATRIX_B[0] = new int[]{1, 2};
-        System.out.println(MATRIX_B[0][0]);
-        MATRIX_B = new int[][]{
-                {1, 2},
-                {3}
-        };*/
-    }
-
-    private static int sumOfSmallestElementsInEveryColumn(final int[][] MATRIX_C) {
-//        todo check different length of rows
-//        todo try to change i and j
-//        todo check repetition of minimal elements
-        int sum = 0;
-        for (int i = 0; i < MATRIX_C[0].length; i++) {
-            int tmpSmallest = MATRIX_C[0][i];
-            for (int j = 1; j < MATRIX_C.length; j++) {
-                if (MATRIX_C[j][i] < tmpSmallest) {
-                    tmpSmallest = MATRIX_C[j][i];
-                }
-            }
-            sum += tmpSmallest;
-        }
-        return sum;
-    }
-
-    private static int sumOfSmallestElementsInEveryColumnRenew(final int[][] MATRIX_C) throws Exception {
-//        todo check different length of rows
-        for (int i = 1; i < MATRIX_C.length; i++) {
-            if (MATRIX_C[i].length != MATRIX_C[0].length) {
-                throw new /*Runtime*/Exception("There are different lengths of matrix rows.");
-//                System.err.println("There are different lengths of matrix rows.");
-//                System.exit(0);
-            }
-        }
-        int sum = 0;
-        for (int j = 0; j < MATRIX_C[0].length; j++) {
-            int tmpSmallest = MATRIX_C[0][j];
-            boolean valueRepeats = false;
-            for (int i = 1; i < MATRIX_C.length; i++) {
-                if (MATRIX_C[i][j] < tmpSmallest) {
-                    tmpSmallest = MATRIX_C[i][j];
-                    valueRepeats = false;
-                } else if (MATRIX_C[i][j] == tmpSmallest) {
-                    valueRepeats = true;
-                }
-            }
-
-            if (!valueRepeats) {
-                sum += tmpSmallest;
-            }
-        }
-        return sum;
-    }
-
-    private static void print(final int[][] MATRIX_C) {
-        for (int i = 0; i < MATRIX_C.length; i++) {
-            for (int j = 0; j < MATRIX_C[i].length; j++) {
-//                System.out.print(MATRIX_C[i][j] + "\t");//printf("%4d",
-                System.out.printf("%4d ", MATRIX_C[i][j]);//printf("%4d",
-            }
-            System.out.println();
-        }
-    }
-
-    private static int[][] multiplication(int A, final int[][] MATRIX_B) {
-        final int[][] MATRIX_C = new int[MATRIX_B.length][/*MATRIX_B[0].length*/]; // todo !!!DANGER different lengths of rows
-//        final int[][] MATRIX_C = MATRIX_B;
-        for (int i = 0; i < MATRIX_B.length; i++) {
-            MATRIX_C[i] = new int[MATRIX_B[i].length];
-            for (int j = 0; j < MATRIX_B[i].length; j++) {
-                MATRIX_C[i][j] = MATRIX_B[i][j] * A;
-            }
-        }
-        return MATRIX_C;
-    }
-}

src/Lab5.java

@@ -0,0 +1,231 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class Letter {
+    private char character;
+
+    public Letter(char character) {
+        this.character = character;
+    }
+
+    public char getCharacter() {
+        return character;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(character);
+    }
+}
+
+class Word {
+    private List<Letter> letters;
+
+    public Word(List<Letter> letters) {
+        this.letters = letters;
+    }
+
+    public List<Letter> getLetters() {
+        return letters;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder wordBuilder = new StringBuilder();
+        for (Letter letter : letters) {
+            wordBuilder.append(letter.getCharacter());
+        }
+        return wordBuilder.toString();
+    }
+}
+
+class Sentence {
+    private List<Object> components;
+
+    public Sentence(List<Object> components) {
+        this.components = components;
+    }
+
+    public List<Object> getComponents() {
+        return components;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sentenceBuilder = new StringBuilder();
+        for (Object component : components) {
+            if (component instanceof Word) {
+                List<Letter> letters = ((Word) component).getLetters();
+                for (Letter letter : letters) {
+                    sentenceBuilder.append(letter.getCharacter());
+                }
+            } else if (component instanceof PunctuationMark) {
+                sentenceBuilder.append(((PunctuationMark) component).getMark());
+            }
+            sentenceBuilder.append(" ");
+        }
+        return sentenceBuilder.toString().trim();
+    }
+}
+
+class PunctuationMark {
+    private char mark;
+
+    public PunctuationMark(char mark) {
+        this.mark = mark;
+    }
+
+    public char getMark() {
+        return mark;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(mark);
+    }
+}
+
+class Text {
+    private List<Sentence> sentences;
+
+    public Text(List<Sentence> sentences) {
+        this.sentences = sentences;
+    }
+
+    public List<Sentence> getSentences() {
+        return sentences;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder textBuilder = new StringBuilder();
+        for (Sentence sentence : sentences) {
+            textBuilder.append(sentence.toString()).append(". ");
+        }
+        return textBuilder.toString().trim();
+    }
+}
+
+public class Lab5 {
+    public static void main(String[] args) {
+        System.out.println("C17 = " + 2425%17);
+        StringBuffer sentence = new StringBuffer("об'єктно-орієнтована мова програмування , випущена 1995 року компанією" +
+                " Сан Майкросістемс , як основний компонент платформи Джава." +
+                " З 2009 року мовою займається компанія Оракл , яка того року придбала Сан Майкросістемс. В офіційній" +
+                " реалізації Джава-програми компілюються у байт-код , який при виконанні інтерпретується віртуальною" +
+                " машиною для конкретної платформи");
+
+        // Заміна послідовності табуляцій та пробілів одним пробілом
+        String cleanedText = replaceTabsAndSpaces(sentence.toString());
+
+        // Розбиття тексту на речення
+        String[] sentenceArray = cleanedText.split("\\.");
+
+        List<Sentence> sentences = new ArrayList<>();
+        List<Character> punctuationMarks = new ArrayList<>();
+
+        for (String s : sentenceArray) {
+            // Розбиття речення на слова та розділові знаки
+            String[] components = s.trim().split("\\s+");
+
+            List<Object> sentenceComponents = new ArrayList<>();
+
+            for (String component : components) {
+                if (isPunctuationMark(component)) {
+                    // Додавання розділових знаків
+                    char mark = component.charAt(component.length() - 1);
+                    punctuationMarks.add(mark);
+                    sentenceComponents.add(new PunctuationMark(mark));
+                } else {
+                    // Створення слова
+                    List<Letter> letters = new ArrayList<>();
+                    for (char c : component.toCharArray()) {
+                        letters.add(new Letter(c));
+                    }
+                    sentenceComponents.add(new Word(letters));
+                }
+            }
+
+            sentences.add(new Sentence(sentenceComponents));
+        }
+
+        // Створення тексту
+        Text text = new Text(sentences);
+
+        // Виведення букв, слів та речень
+        List<Sentence> allSentences = text.getSentences();
+        for (Sentence s : allSentences) {
+            List<Object> components = s.getComponents();
+
+            for (Object component : components) {
+                if (component instanceof Word) {
+                    System.out.println("Слово: " + component);
+                    List<Letter> letters = ((Word) component).getLetters();
+                    for (Letter letter : letters) {
+                        System.out.println("Літера: " + letter.getCharacter());
+                    }
+                } else if (component instanceof PunctuationMark) {
+                    System.out.println("Розділовий знак: " + ((PunctuationMark) component).getMark());
+                }
+            }
+
+            System.out.println("Речення: " + s.toString());
+            System.out.println();
+        }
+
+        // Виведення розділових знаків
+        System.out.println("Розділові знаки:");
+        for (Character mark : punctuationMarks) {
+            System.out.println(mark);
+        }
+
+        // Виведення масиву речень з пробілами
+        System.out.println("Масив речень:");
+        for (Sentence s : allSentences) {
+            System.out.println(s.toString());
+        }
+
+        // Видалення слів заданої довжини, починаючи з приголосної літери
+        removeWords(allSentences);
+
+        // Виведення оновленого тексту
+        System.out.println("Оновлений текст:");
+        System.out.println(text.toString());
+
+    }
+
+
+    // Функція для заміни табуляцій та пробілів одним пробілом
+    private static String replaceTabsAndSpaces(String text) {
+        return text.replaceAll("\\s+", " ");
+    }
+
+    // Функція для перевірки, чи є рядок розділовим знаком
+    private static boolean isPunctuationMark(String text) {
+        return text.matches(".*[,.]$");
+    }
+
+    // Функція для видалення слів заданої довжини, починаючи з приголосної літери
+    private static void removeWords(List<Sentence> sentences) {
+        String consonants = "бвгґджзклмнпрстфхцчшщ";
+        for (Sentence sentence : sentences) {
+            List<Object> components = sentence.getComponents();
+            List<Object> componentsToRemove = new ArrayList<>();
+
+            for (Object component : components) {
+                if (component instanceof Word) {
+                    Word word = (Word) component;
+                    List<Letter> letters = word.getLetters();
+                    int wordLength = letters.size();
+                    char firstLetter = letters.get(0).getCharacter();
+
+                    if ((wordLength > 5) && (wordLength < 9) && consonants.contains(String.valueOf(firstLetter))) {
+                        componentsToRemove.add(component);
+                    }
+                }
+            }
+
+            components.removeAll(componentsToRemove);
+        }
+    }
+}

src/Main.java

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

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

src/encapsulationInheritancePolymorphism/EncapsulationInheritancePolymorphism.java

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

src/encapsulationInheritancePolymorphism/Main.java

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

src/encapsulationInheritancePolymorphism/Student.java

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

src/encapsulationInheritancePolymorphism/inheritance/ElectricEngine.java

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

src/encapsulationInheritancePolymorphism/inheritance/Engine.java

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

src/encapsulationInheritancePolymorphism/inheritance/FuelEngine.java

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

src/encapsulationInheritancePolymorphism/inheritance/Main.java

@@ -1,8 +0,0 @@
-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

@@ -1,14 +0,0 @@
-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

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

src/encapsulationInheritancePolymorphism/polymorphism/FuelEngine.java

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

src/encapsulationInheritancePolymorphism/polymorphism/Main.java

@@ -1,38 +0,0 @@
-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

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

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

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/FuelEngine.java

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

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Main.java

@@ -1,28 +0,0 @@
-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

@@ -1,17 +0,0 @@
-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/lab3/Lab3.java

@@ -1,75 +0,0 @@
-package lab3;
-
-public class Lab3 {
-    private static final int REPETITION_NUMBER = 10;
-    public static void main(String[] args) {
-        StringBuilder result = new StringBuilder();
-        for (int i = 0; i < REPETITION_NUMBER; i++) {
-//            result += Integer.toString(i);
-//            result += String.valueOf(i);
-            result.append(i);
-        }
-
-
-
-        /*float f = 1.1f;
-        double d = 2.2;
-//        f = (float) (f + d);
-        f += d;*/
-
-        String s = "ASD";
-
-        StringBuilder stringBuilder = new StringBuilder("ASD");
-        StringBuffer stringBuffer = new StringBuffer("ASD");
-
-        stringBuilder.append("A");
-        System.out.println(s.length());
-        System.out.println(stringBuilder.length());
-        System.out.println(stringBuffer.length());
-
-        System.out.println(s.endsWith("D"));
-//        System.out.println(stringBuilder.substring(stringBuilder.length() - 1).equals("A"));
-        System.out.println("A".equals(stringBuilder.substring(stringBuilder.length() - 1)));
-        System.out.println("A".equals(stringBuffer.substring(stringBuffer.length() - 1)));
-
-        String sNull = null;
-        System.out.println("A".equals(sNull));
-        System.out.println(sNull.equals("A"));
-
-        System.out.println(s.substring(2));
-        System.out.println(s.contains("AS"));
-
-        System.out.println(s.indexOf('a'));
-
-//        System.out.println(s.charAt(-1));
-
-        System.out.println("s.equalsIgnoreCase(\"AsD\") = " + s.equalsIgnoreCase("AsD"));
-
-        String s2 = s;
-        System.out.println("s2 = " + s2);
-        System.out.println(s == s2); // true?
-        System.out.println(s.equals(s2)); // true?
-        s += "B";
-        System.out.println(s);
-        System.out.println("s2 = " + s2);
-
-        System.out.println(s == s2); // false?
-        System.out.println(s.equals(s2)); // false?
-
-        String s3 = new String("ASD");
-        System.out.println(s3 == s2); // true? (false)
-        System.out.println(s3.equals(s2)); // false? (true)
-
-//      String Pool
-        String s4 = "ASD";
-//        String s5 = new String("ASD");
-        String s5 = "AS";
-        s5 += "D";
-        System.out.println(s4 == s5); // true? (SP)
-        System.out.println(s4.equals(s5)); // (true)
-
-
-
-        System.out.println("Done!");
-    }
-}

src/lab3/Variant0.java

@@ -1,66 +0,0 @@
-package lab3;
-
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Set;
-
-/**
- * Знайти найбільшу кількість речень заданого тексту, в яких є однакові слова.
- */
-public class Variant0 {
-    public static void main(String[] args) {
-        System.out.println("\\");
-        String textString = "Aa, a b. Bb a? B a! B a. Ccc.";
-//        final String[] sentencesStrings = textString.split("(?<=(\\.|!|\\?)) ");
-//        final String[] sentencesStrings = textString.split("(?<=[.!?]) ");
-        final String[] sentencesStrings = textString.split("[.!?] ?");
-        for (String sentencesString : sentencesStrings) {
-            System.out.println("[" + sentencesString + "]");
-        }
-        System.out.println("++++++++++++");
-
-        final String[][] wordsStringsBySentences = new String[sentencesStrings.length][];
-        for (int i = 0; i < sentencesStrings.length; i++) {
-            wordsStringsBySentences[i] = sentencesStrings[i].split(",? ");
-        }
-
-        for (String[] wordsStrings : wordsStringsBySentences) {
-            for (String wordsString : wordsStrings) {
-                System.out.print("[" + wordsString + "] - ");
-            }
-            System.out.println();
-        }
-
-        Set<String> originalWordsStrings = new HashSet();
-        for (String[] wordsStrings : wordsStringsBySentences) {
-            for (String wordsString : wordsStrings) {
-                originalWordsStrings.add(wordsString.toLowerCase());
-            }
-        }
-        final String[] originalWordsArray = originalWordsStrings.toArray(new String[0]);
-
-        System.out.println("++++++++++++");
-        for (Object originalWordsString : originalWordsStrings) {
-            System.out.println(originalWordsString);
-        }
-
-        int[] entersQuantitiesOriginalWordsInSentences = new int[originalWordsArray.length];
-        for (int i = 0; i < originalWordsArray.length; i++) {
-            String originalWord = originalWordsArray[i];
-            for (String[] words : wordsStringsBySentences) {
-                for (String word : words) {
-                    if (originalWord.equalsIgnoreCase(word)) {
-                        entersQuantitiesOriginalWordsInSentences[i]++;
-                        break;
-                    }
-                }
-            }
-        }
-
-//        todo show greatest value from entersQuantitiesOriginalWordsInSentences
-
-//        System.out.println(Arrays.toString(sentencesStrings));
-        System.out.println("++++++++++++");
-    }
-}

src/lab4/Furniture.java

@@ -1,93 +0,0 @@
-package lab4;
-
-
-///**
-// * My class Furniture.
-// */
-//todo uncomment /*<Furniture>*/
-public /*abstract*/ class Furniture/*<T>*/ implements Comparable<Furniture> {
-    /**
-     *
-     */
-    private String material;
-    private int length;
-    private int height;
-    private int width;
-    private int price;
-
-//    private T additional;
-
-//    public void setAdditional(T additional) {
-//        this.additional = additional;
-//    }
-
-    /**
-     * @param material
-     * @param length
-     * @param height
-     * @param width
-     * @param price
-     */
-    public Furniture(String material, int length, int height, int width, int price) {
-//        this.material = material;
-        setMaterial(material);
-        this.length = length;
-        this.height = height;
-        this.width = width;
-        this.price = price;
-    }
-
-    public void setMaterial(String material) {
-        this.material = material;
-    }
-
-    public String getMaterial() {
-        return material;
-    }
-
-    public int getLength() {
-        return length;
-    }
-
-    public int getHeight() {
-        return height;
-    }
-
-    public int getWidth() {
-        return width;
-    }
-
-    public int getPrice() {
-        return price;
-    }
-
-    /*public Furniture() {
-
-    }*/
-
-    @Override
-    public String toString() {
-        return "Furniture{" +
-                "material='" + material + '\'' +
-                ", length=" + length +
-                ", height=" + height +
-                ", width=" + width +
-                ", price=" + price +
-                '}';
-    }
-
-//    @Override
-//    public int compareTo(Object o) {
-//        return /*this.*/price - ((Furniture) o).price;
-////        return /*this.*/material.compareTo(((Furniture) o).material);
-//    }
-
-    @Override
-    public int compareTo(Furniture o) {
-        final int priceDifference = price - o.price;
-        return priceDifference != 0
-                ? priceDifference
-//                : -material.compareTo(o.material);
-                : o.material.compareTo(material);
-    }
-}

src/lab4/Main.java

@@ -1,84 +0,0 @@
-package lab4;
-
-import java.util.Arrays;
-import java.util.Comparator;
-
-public class Main {
-    public static void main(String[] args) {
-        System.out.println(Integer.MIN_VALUE - 1);
-        //todo equals+hashcode
-//        todo JavaDoc
-        final Furniture/*<Furniture>*/ furniture1 = new Furniture("A", 1, 1, 1, 1);
-        final Furniture/*<String>*/ furniture2 = new Furniture("F", 1, 1, 1, 4);
-
-        System.out.println(furniture1.compareTo(furniture2));
-//        System.out.println(furniture1.compareTo("furniture2"));
-
-        Furniture[] furnitureArray = {
-                furniture1,
-                furniture2,
-            new Furniture("B", 1, 2, 1, 1),
-            new Furniture("C", 1, 1, 3, 1),
-        };
-
-        for (Furniture furniture : furnitureArray) {
-//            System.out.println(furniture.getMaterial() + " " + furniture.getPrice());
-            System.out.println(furniture);
-        }
-        System.out.println("+++++++++++++");
-
-//        furniture1.setAdditional(new Furniture("Y", 1, 1, 1, 0));
-//        furniture2.setAdditional("new Furniture(\"Y\", 1, 1, 1, 0)");
-
-//        furnitureArray[0].setMaterial("E");
-
-        Arrays.sort(furnitureArray, (o1, o2) -> o1.getMaterial().compareTo(o2.getMaterial()));
-        for (Furniture furniture : furnitureArray) {
-            System.out.println(furniture);
-        }
-
-        System.out.println("+++++++++++++");
-
-//        todo check
-        Arrays.sort(furnitureArray, (o1, o2) -> Integer.compare(o2.getPrice(), o1.getPrice()));
-        for (Furniture furniture : furnitureArray) {
-            System.out.println(furniture);
-        }
-
-        System.out.println("+++++++++++++");
-
-        /*Arrays.sort(furnitureArray);
-        for (Furniture furniture : furnitureArray) {
-            System.out.println(furniture);
-        }
-
-        System.out.println("+++++++++++++");*/
-
-        /*Arrays.sort(furnitureArray, new PriceFurnitureComparator());
-        for (Furniture furniture : furnitureArray) {
-            System.out.println(furniture);
-        }
-
-        System.out.println("+++++++++++++");*/
-
-        /*Arrays.sort(furnitureArray, new Comparator<Furniture>() {
-            @Override
-            public int compare(Furniture o1, Furniture o2) {
-                return o1.getMaterial().compareTo(o2.getMaterial());
-            }
-        });*/
-//        Arrays.sort(furnitureArray, (o1, o2) -> o1.getMaterial().compareTo(o2.getMaterial()));
-//        Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getMaterial));
-//        Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getMaterial).reversed());
-//        Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getPrice)
-//        .thenComparing(Furniture::getMaterial).reversed());
-        Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getPrice)
-                .thenComparing(Comparator.comparing(Furniture::getMaterial).reversed()));
-
-        for (Furniture furniture : furnitureArray) {
-            System.out.println(furniture);
-        }
-
-        System.out.println("+++++++++++++");
-    }
-}

src/lab4/MaterialFurnitureComparator.java

@@ -1,11 +0,0 @@
-package lab4;
-
-import java.util.Comparator;
-
-public class MaterialFurnitureComparator implements Comparator<Furniture> {
-
-    @Override
-    public int compare(Furniture o1, Furniture o2) {
-        return o1.getMaterial().compareTo(o2.getMaterial());
-    }
-}

src/lab4/PriceFurnitureComparator.java

@@ -1,11 +0,0 @@
-package lab4;
-
-import java.util.Comparator;
-
-public class PriceFurnitureComparator implements Comparator<Furniture> {
-
-    @Override
-    public int compare(Furniture o1, Furniture o2) {
-        return o1.getPrice() - o2.getPrice();
-    }
-}

src/test/A.java

@@ -1,13 +0,0 @@
-package test;
-
-public class A {
-    /*private*/ int f/* = 3*/;
-
-    public int getF() {
-        return f;
-    }
-
-    public void setF(int f) {
-        this.f = f;
-    }
-}

src/test/Main.java

@@ -1,15 +0,0 @@
-package test;
-
-public class Main {
-    public static void main(String[] args) {
-        A a = new A();
-        System.out.println(a.getF());
-        a.setF(1);
-        System.out.println(a.getF());
-
-        System.out.println(a.f);
-
-        int[] array = {1, 2, 1};
-        System.out.println(array.length);
-    }
-}

src/test/Test.java

@@ -1,13 +0,0 @@
-package test;
-
-public class Test {
-    public static void main(String[] args) {
-
-    }
-    static int m(){
-        System.exit(0);
-//        return 1;
-        System.out.println(123);
-        return 1;
-    }
-}

src/test/one/A.java

@@ -1,7 +0,0 @@
-package test.one;
-
-public class A implements MyMethodInterface {
-    public void myMethod() {
-
-    }
-}

src/test/one/B.java

@@ -1,7 +0,0 @@
-package test.one;
-
-public class B implements MyMethodInterface {
-    public void myMethod() {
-
-    }
-}

src/test/one/Main.java

@@ -1,13 +0,0 @@
-package test.one;
-
-public class Main {
-    public static void main(String[] args) {
-        Object[] objects = {
-                new A(),
-                new B(),
-        };
-        for (Object object : objects) {
-            ((MyMethodInterface)object).myMethod();
-        }
-    }
-}

src/test/one/MyMethodInterface.java

@@ -1,5 +0,0 @@
-package test.one;
-
-public interface MyMethodInterface {
-    void myMethod();
-}