bubble sort (not optimized with flag)

import java.io.*;
import java.util.*;

//bubble sort without flag optimization

class MyCode {
    public static void main (String[] args) {
        int[] arr = {5,4,3,1};
    System.out.println(Arrays.toString(bubble(arr)));
    }

  public static int[] bubble(int[] arr){
    int temp = 0;
    for(int j = 0; j < arr.length; j++){
      for(int i = 0; i< arr.length-1; i++){
          if(arr[i] > arr[i+1]){
              temp = arr[i];
              arr[i] = arr[i+1];
              arr[i+1] = temp;
              System.out.println(Arrays.toString(arr));
          }
      }
    }
    return arr;
  }
}