sort array in java

How to sort array in java using for loop ?

>> We can sort given array in ascending / descending order using for loop.

import java.util.Arrays;
public class sortArray {
    public static void main(String[] args) {
    int a[] = { 3, 2, 1, 5, 6, 4, 9, 7, 8 };

    int temp = 0;
    for (int i = 0; i < a.length; i++) {
        for (int j = i + 1; j < a.length; j++) {
            if (a[i] > a[j]) {
                temp = a[i];
                a[i] = a[j];
                a[j] = temp;
            }
        }
    }
    System.out.print("Array in ascending order=");
    for (int num : a) {
        System.out.print(num + " ");
    }
    System.out.println("\n<<----------------------------------->>");
    int temp1 = 0;
    for (int i = 0; i < a.length; i++) {
        for (int j = i + 1; j < a.length; j++) {
            if (a[i] < a[j]) {
                temp1 = a[i];
                a[i] = a[j];
                a[j] = temp1;
            }
        }
    }
    System.out.print("Array in descending order=");
        for (int num : a) {
            System.out.print(num + " ");
        }
    System.out.println("\n<<----------------------------------->>");
    System.out.print("Array in ascending order using Arrays.sort()=");
    int b[] = { 3, 2, 1, 5, 6, 4, 9, 7, 8, -4, 10, -6 };
    Arrays.sort(b);
    for (int n : b) {
        System.out.print(n + " ");
    }
  }
}

Output:

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