import java.util.HashMap; import java.util.Map; public class Solution{ public static HashMap createMap(){ HashMap map = new HashMap(); map.put("haokip1", "stephen0"); map.put("haokip2", "stephen9"); map.put("haokip3", "stephen8"); map.put("haokip4", "stephen7"); map.put("haokip5", "stephen6"); map.put("haokip6", "stephen5"); map.put("haokip7", "stephen4"); map.put("haokip8", "stephen3"); map.put("haokip9", "stephen4"); map.put("haokip0", "stephen2"); return map; } public static void removeFirstNameDuplicates(Map map){ int count = 0; HashMap copy = new HashMap(); copy.putAll(map); for(Map.Entrypair1 : map.entrySet()){ String first = pair1.getValue(); for(Map.Entrypair2 : copy.entrySet()){ String second = pair2.getValue(); if(second.equals(first)){ count++; } if(count>=2){ //map.remove(pair1.getValue()); removeItemFromMapByValue(map, first); } count = 0; } } } public static void removeItemFromMapByValue(Map map, String value){ HashMap copy = new HashMap(map); for (Map.Entry pair : copy.entrySet()){ if (pair.getValue().equals(value)) map.remove(pair.getKey()); } } public static void main(String[] args){ } }

removedublicatevalues