change argument number

.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_18" default="true" project-jdk-name="openjdk-18" 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 +1,15 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println(args[0]);
+        System.out.println("Hello world!");
+//        System.out.println(1);
+    }
+
+    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/test/A.java

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

src/test/Main.java

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