Find the same characters in two strings and go back to the

import java.util.hashmap;import java.util.hashset;import java.util.iterator;import  Java.util.map;import java.util.set;public class test { public static void  main (String[] args)  {  String s1 =  "123456ABCDE";   string  s2 =  "111222BBBCC";   system.out.println (New test (). Findsame (S1,&NBSP;S2));  } public string findsame (STRING&NBSP;S1,&NBSP;STRING&NBSP;S2)  {  Map  Map = new hashmap ();   set result = new hashset ();   char [] char1 = s1.tochararray ();   char[] char2 = s2.tochararray ();   for  (int i = 0; i < char1.length; i++)  {    map.put (" + char1[i], char1[i]);  }  for  (int j =  0; j < char2. length; j++)  {   if  (Map.get (" + char2[j])  != null)  {     result.add (Char2[j]);    }  }  /*for ( Iterator    it = result.iterator ();   it.hasnext (); )     {                       system.out.println ("value=" +it.next (). toString ());                 }*/   return result.tostring ();  }}

Find the same characters in two strings and go back to the