Java restudy

[Blue JProgramme]

can anyone post some code for For Loop, Selection, Array and Method ?

 

[John Joe]

For loop

public class ForLoopExample {
    public static void main(String[] args) {
        // For loop that prints numbers from 1 to 5
        for (int i = 1; i <= 5; i++) {
            System.out.println("Number: " + i);
        }
    }
}

Selection

public class SelectionExample {
    public static void main(String[] args) {
        int number = 7;

        if (number % 2 == 0) {
            System.out.println(number + " is even.");
        } else {
            System.out.println(number + " is odd.");
        }
    }
}

Array

public class ArrayExample {
    public static void main(String[] args) {
        // Array of integers
        int[] numbers = {1, 2, 3, 4, 5};

        // Loop through the array and print each element
        for (int i = 0; i < numbers.length; i++) {
            System.out.println("Element at index " + i + ": " + numbers[i]);
        }
    }
}

Method

public class MethodExample {
    public static void main(String[] args) {
        // Call the method with an argument
        int result = square(5);
        System.out.println("Square of 5 is: " + result);
    }

    // Method to calculate the square of a number
    public static int square(int num) {
        return num * num;
    }
}

 

[Blue JProgramme]

For loop

public class ForLoopExample {
    public static void main(String[] args) {
        // For loop that prints numbers from 1 to 5
        for (int i = 1; i <= 5; i++) {
            System.out.println("Number: " + i);
        }
    }
}

Selection

public class SelectionExample {
    public static void main(String[] args) {
        int number = 7;

        if (number % 2 == 0) {
            System.out.println(number + " is even.");
        } else {
            System.out.println(number + " is odd.");
        }
    }
}

Array

public class ArrayExample {
    public static void main(String[] args) {
        // Array of integers
        int[] numbers = {1, 2, 3, 4, 5};

        // Loop through the array and print each element
        for (int i = 0; i < numbers.length; i++) {
            System.out.println("Element at index " + i + ": " + numbers[i]);
        }
    }
}

Method

public class MethodExample {
    public static void main(String[] args) {
        // Call the method with an argument
        int result = square(5);
        System.out.println("Square of 5 is: " + result);
    }

    // Method to calculate the square of a number
    public static int square(int num) {
        return num * num;
    }
}

thanks !