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 stub12 printDuplicateCharacters("adsfadsfadsfhhh");13 }14 15 public static void printDuplicateCharacters(String word)16 {17 char[] charaters=word.toCharArray();18 MapcharMap=new HashMap ();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 > entrySet=charMap.entrySet();27 System.out.printf("List of duplicate characters in Strng '%s' %n",word);28 for(Map.Entry entry:entrySet){29 if(entry.getValue()>1){30 System.out.printf("%s:%d:%n",entry.getKey(),entry.getValue());31 }32 }33 }34 }35