1 import java.util.HashMap;
2 import java.util.Map;
3 import java.util.Set;
4
5 public class findMulString {
6
7 /**
8 * @param args
9 */
10 public static void main(String[] args) {
11 // TODO Auto-generated method stub
12 printDuplicateCharacters("adsfadsfadsfhhh");
13 }
14
15 public static void printDuplicateCharacters(String word)
16 {
17 char[] charaters=word.toCharArray();
18 Map<Character,Integer> charMap=new HashMap<Character,Integer>();
19 for (Character ch: charaters) {
20 if(charMap.containsKey(ch)){
21 charMap.put(ch, charMap.get(ch)+1);
22 }else{
23 charMap.put(ch, 1);
24 }
25 }
26 Set<Map.Entry<Character,Integer>> entrySet=charMap.entrySet();
27 System.out.printf("List of duplicate characters in Strng '%s' %n",word);
28 for(Map.Entry<Character, Integer> entry:entrySet){
29 if(entry.getValue()>1){
30 System.out.printf("%s:%d:%n",entry.getKey(),entry.getValue());
31 }
32 }
33 }
34 }
35
