Java BubbleSort

public class BubbleSort {

    public static void main(String[] args) {

        int[] nums = new int[10];
        Random random = new Random();

        System.out.print("Original array is: ");

        for (int a = 0; a < nums.length; a++) {
            nums[a] = random.nextInt(100);
            System.out.print(nums[a] + " ");
        }

        System.out.println();
        bubbleSortAscending(nums);
        System.out.println();
        bubbleSortDescending(nums);
    }

    private static void bubbleSortAscending(int[] numbers) {
        int temp;

        for (int i = 0; i < numbers.length; i++) {
            for (int j = 1; j < numbers.length; j++) {
                if (numbers[j - 1] > numbers[j]) {
                    temp = numbers[j - 1];
                    numbers[j - 1] = numbers[j];
                    numbers[j] = temp;
                }
            }
        }

        System.out.print("Ascending order: ");

        for (int a = 0; a < numbers.length; a++) {
            System.out.print(numbers[a] + " ");
        }
    }


    private static void bubbleSortDescending(int[] numbers) {
        int temp;

        for (int i = 0; i < numbers.length; i++) {
            for (int j = 1; j < numbers.length; j++) {
                if (numbers[j] > numbers[j - 1]) {
                    temp = numbers[j];
                    numbers[j] = numbers[j - 1];
                    numbers[j - 1] = temp;
                }
            }
        }

        System.out.print("Descending Order: ");

        for (int a = 0; a <numbers.length; a++) {
            System.out.print(numbers[a] + " ");
        }
    }
}