Bit sorter (in place)

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

class BitSorter {
    public static void main (String[] args) {
    int[] input = {0,1,0,1,1,1,0,0,1,0};
        System.out.println(Arrays.toString(input));

        System.out.println(Arrays.toString(sortBits(input)));
    }

  private static int[] sortBits(int[] arr){
    int divider = 0;
    int temp;
    for(int i = 0; i< arr.length; i++){
      if(arr[i]== 0){
        temp = arr[i];
        arr[i] = arr[divider];
        arr[divider] = temp;
        divider++;
      }
    }
    return arr;
  }
}