sorting algorithms in java

1public class SortingData {
2    public static void main(String[] args)
3    {
4        int[] arr = { 13, 7, 6, 45, 21, 9, 101, 102 };
5  		
6        Arrays.sort(arr);//sort() function
7  
8        System.out.printf("Modified arr[] : %s",
9                          Arrays.toString(arr));
10    }
11}

1for (int i = 0; i < arr.length; i++) {
2   for (int j = 0; j < arr.length-1-i; j++) { 
3     if(arr[j]>arr[j+1])
4     {
5       int temp=arr[j];
6       arr[j]=arr[j+1];
7       arr[j+1]=temp;
8     }
9   }
10   System.out.print("Iteration "+(i+1)+": ");
11   printArray(arr);
12  }
13  return arr;
14// BUBBLE SORT

1Bubble Sort