java program to sort the characters in a string in ascending order

The following program illustrates the sorting of letters in a string.In this sort() method is used.It will sort all the letters in a string in ascending order. 

import java.util.*;

import java.io.*;

import java.lang.String;

class sortletters

{

public static void main(String args[]) throws Exception

{

System.out.println("enter a string");

  BufferedReader k = new BufferedReader(new InputStreamReader(System.in));

String s=k.readLine();

char[] data=s.toCharArray();

java.util.Arrays.sort(data);

String s1=new String(data);

System.out.println("After Sorting");

System.out.println(data);

}

}

Output:

enter a string

example

After sorting

aeelmpx