write a program in java to reverse string that consists of special symbol ,reverse it without affecting the position of special symbole.

Given a string is :
input:     str="a,b$c"
output:  str="c,b$a"

input:     str="$b,c,d!e$"
output:  str="$e,d,c!b$"

class StringReverseWithoutAffectingSymbol

{

       public static void stringReverse(String input)

       {

              char ch[]=input.toCharArray();

              String revStr="";

              System.out.println("Given string is::"+input);

              for(int i=input.length()-1;i>=0;i--)

              {   if(Character.isLetter(ch[i]))

                     revStr+=ch[i];

              }

              char temp[]=revStr.toCharArray();

              int k=0;

              for(int j=0;j<ch.length;j++)

              {

                     if(Character.isLetter(ch[j]))

                     {

                           ch[j]=temp[k++];

                     }

              }

              System.out.println("Reversed string is::"+new String(ch));

              System.out.println("--------------------------------------");

              }

       public static void main(String[] args)

       {

              stringReverse("a,b$c");

              stringReverse("a!@bc&d");

       }

}

Output: