Bubble Sort With Java

bubbleSort

 public static void swap(int[] arr, int index1, int index2) {
        int temp = arr[index1];
        arr[index1] = arr[index2];
        arr[index2] = temp;
    }

    public static void bubbleSort(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            for (int j = 1; j < arr.length; j++) {
                if (arr[j] < arr[j - 1]) {
                    swap(arr, j, j - 1);
                }

            }
        }

    }
    
    public static void main(String[] args) {

        int[] arr = {-5,1,2,6,9,-99};

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

        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();

        bubbleSort(arr);

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

        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();
    }