which sorting algorithm is used by java sort code example

Example: sort algorithms java

for (int i = 0; i < arr.length; i++) {
   for (int j = 0; j < arr.length-1-i; j++) { 
     if(arr[j]>arr[j+1])
     {
       int temp=arr[j];
       arr[j]=arr[j+1];
       arr[j+1]=temp;
     }
   }
   System.out.print("Iteration "+(i+1)+": ");
   printArray(arr);
  }
  return arr;
// BUBBLE SORT