Bubble Sort in JAVA

public void bubbleSort(int[] arr) {

      boolean swapped = true;

      int j = 0;

      int tmp;

      while (swapped) {

            swapped = false;

            j++;

            for (int i = 0; i < arr.length - j; i++) {                                       

                  if (arr[i] > arr[i + 1]) {                          

                        tmp = arr[i];

                        arr[i] = arr[i + 1];

                        arr[i + 1] = tmp;

                        swapped = true;

                  }

            }                

      }

}

or

void bubbleSort(int[] arr){

int n = arr.length;

for (int i = 0; i < n-1; i++){

for (int j = 0; j < n-i-1; j++){

if (arr[j] > arr[j+1]){

// swap temp and arr[i]

int temp = arr[j];

arr[j] = arr[j+1];

arr[j+1] = temp;

}

                }

}

}

Time O(n^2)