Swap two number

```java

public class SwapNumbers {

    public static void main(String[] args) {

        int num1 = 5;

        int num2 = 10;

        System.out.println("Before swapping: ");

        System.out.println("num1 = " + num1);

        System.out.println("num2 = " + num2);

        // Swapping logic

        int temp = num1;

        num1 = num2;

        num2 = temp;

        System.out.println("After swapping: ");

        System.out.println("num1 = " + num1);

        System.out.println("num2 = " + num2);

    }

}

```

Description:

1. We start by declaring two integer variables, `num1` and `num2`, with initial values.

2. Before swapping, we print the values of `num1` and `num2`.

3. To swap the numbers, we use a temporary variable `temp` to hold one of the values temporarily.

4. We assign `num2` to `num1` and then assign the value in `temp` to `num2`.

5. After swapping, we print the values of `num1` and `num2` again.

Conclusion:

This code demonstrates a simple way to swap two numbers in Java using a temporary variable. Swapping values is a common operation in programming, and this method is straightforward and widely used. It works for variables of any numeric type and can be adapted for other data types as well.