hi friend,

Try the following code

    class BubbleSortString {  

      public static void main(String args[]) {
        String name = args[0];
        String arr[] = name.split("");
        for (int j = 0; j < arr.length; j++) {
          for (int i = j + 1; i < arr.length; i++) {
            if (arr[i].compareTo(arr[j]) < 0) {
              String t = arr[j];
              arr[j] = arr[i];
              arr[i] = t;
            }
          }
          System.out.print(arr[j]);
        }
      }
    }