School, 05.09.2017, Ex1, array reverse

public class Ex1 {
    // Write a Java program to reverse an array of integer values
    public static void main(String[] args) {
        // initialize array
        int[] arr = { 3, 1, 5, 2, 7, 12, 79, 10 };

        // print source array
        System.out.print("Array before reverse: ");
        for (int i = 0; i < arr.length; i += 1) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();

        // reverse the array order
        int left = 0;
        int right = arr.length - 1;

        while (left < right) {
            // switch values
            int tmp = arr[left];
            arr[left] = arr[right];
            arr[right] = tmp;

            left += 1;
            right -= 1;

        }

        // print the array after reverse
        System.out.print("Array after reverse : ");
        for (int i = 0; i < arr.length; i += 1) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();

    }

}