Can somebody give me a hint why it doesn't work?
package com.codegym.task.task08.task0817;
import java.util.HashMap;
import java.util.Map;
import java.util.ArrayList;
/*
We don't need repeats
*/
public class Solution {
public static HashMap<String, String> createMap() {
//write your code here
HashMap<String, String> map = new HashMap<String, String>();
map.put("Huber", "Florian");
map.put("Huber1", "Florian");
map.put("Huber2", "Floriann");
map.put("Huber3", "Florian3");
map.put("Huber4", "Florian");
map.put("Huber5", "Florian3");
map.put("Huber6", "Florian");
map.put("Huber7", "Florian");
map.put("Huber8", "Florian2");
map.put("Huber9", "Florian1");
return map;
}
public static void removeFirstNameDuplicates(Map<String, String> map) {
//write your code here
ArrayList<String> list = new ArrayList<String>();
ArrayList<String> list2 = new ArrayList<String>();
for (Map.Entry<String, String> pair : map.entrySet()) {
String value = pair.getValue();
if (list2.contains(value))
list.add(value);
else
list2.add(value);
}
for (String strg : list) {
removeItemFromMapByValue(map, strg);
}
}
public static void removeItemFromMapByValue(Map<String, String> map, String value) {
HashMap<String, String> copy = new HashMap<String, String>(map);
for (Map.Entry<String, String> pair : copy.entrySet()) {
if (pair.getValue().equals(value))
map.remove(value);
}
}
public static void main(String[] args) {
}
}