Sorting string without using string Methods?

package javaprgms;

public class SortString {

public static void main(String[] args) {

String original = "edcba";

int j=0;

char temp=0;

  char[] chars = original.toCharArray();

  for (int i = 0; i <chars.length; i++) {

      for ( j = 0; j < chars.length; j++) {

       if(chars[j]>chars[i]){

            temp=chars[i];

           chars[i]=chars[j];

           chars[j]=temp;

       }

   } 

}

for(int k=0;k<chars.length;k++){

System.out.println(chars[k]);

}

}

}

Output:

abcde