package com.javarush.task.task08.task0817;
import java.util.HashMap;
import java.util.Map;
public class Solution {
public static HashMap<String, String> createMap() {
HashMap<String, String> map = new HashMap<>();
map.put("Pupkin", "Pup");
map.put("Vasilkov", "Alex");
map.put("Grimm", "Brat");
map.put("Konyshev", "Gosha");
map.put("Petrov", "Izya");
map.put("Zmeeva", "Olga");
map.put("Rukin", "Alex");
map.put("Dolina", "Larisa");
map.put("Vasserman", "Anatoly");
map.put("Rivz", "Kianu");
return map;
}
public static void removeTheFirstNameDuplicates(Map<String, String> map) {
int count = 0;
for (Map.Entry<String, String> orig : map.entrySet()) {
for (Map.Entry<String, String> camp : map.entrySet()) {
if (orig.getValue().equals(camp.getValue())) {
count++;
}
}
if (count > 1){
Solution.removeItemFromMapByValue(map, orig.getValue());
}
count = 0;
}
}
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(pair.getKey());
}
}
public static void main(String[] args) {
Solution.removeTheFirstNameDuplicates(createMap());
}
}
package com.javarush.task.task08.task0817;
import java.util.HashMap;
import java.util.Map;
public class Solution {
public static HashMap<String, String> createMap() {
HashMap<String, String> map = new HashMap<>();
map.put("Pupkin", "Pup");
map.put("Vasilkov", "Alex");
map.put("Grimm", "Brat");
map.put("Konyshev", "Gosha");
map.put("Petrov", "Izya");
map.put("Zmeeva", "Olga");
map.put("Rukin", "Alex");
map.put("Dolina", "Larisa");
map.put("Vasserman", "Anatoly");
map.put("Rivz", "Kianu");
return map;
}
public static void removeTheFirstNameDuplicates(Map<String, String> map) {
int count = 0;
for (Map.Entry<String, String> orig : map.entrySet()) {
for (Map.Entry<String, String> camp : map.entrySet()) {
if (orig.getValue().equals(camp.getValue())) {
count++;
}
}
if (count > 1){
Solution.removeItemFromMapByValue(map, orig.getValue());
}
count = 0;
}
}
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(pair.getKey());
}
}
public static void main(String[] args) {
Solution.removeTheFirstNameDuplicates(createMap());
}
}