package com.codegym.task.task08.task0817;
import java.util.*;
import java.util.HashMap;
import java.util.Map;
/*
We don't need repeats
*/
public class Solution {
public static HashMap<String, String> createMap() {
HashMap<String,String> map = new HashMap<String,String>();
map.put("Laxman","VVS");
map.put("Gupta","Harsh");
map.put("Singh","Kartik");
map.put("Mangeshkar","Lata");
map.put("Ghosal","Lata");
map.put("Weasley","Ronald");
map.put("Granger","Hermione");
map.put("Potter","Yashi");
map.put("Weasley","Ginny");
map.put("Gupta","Yashi");
return map;
//write your code here
}
public static void removeFirstNameDuplicates(Map<String, String> map) {
HashMap<String,String> copy = new HashMap<String,String>(map);
ArrayList<String> s1 = new ArrayList<String>();
for(Map.Entry<String,String>pair :copy.entrySet())
{
s1.add(pair.getValue());
}
for(Map.Entry<String,String>pair :copy.entrySet())
{
for(int i=0;i<s1.size();i++)
{
removeItemFromMapByValue(map,s1.get(i));
}
}
}
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) {
}
}
package com.codegym.task.task08.task0817;
import java.util.*;
import java.util.HashMap;
import java.util.Map;
/*
We don't need repeats
*/
public class Solution {
public static HashMap<String, String> createMap() {
HashMap<String,String> map = new HashMap<String,String>();
map.put("Laxman","VVS");
map.put("Gupta","Harsh");
map.put("Singh","Kartik");
map.put("Mangeshkar","Lata");
map.put("Ghosal","Lata");
map.put("Weasley","Ronald");
map.put("Granger","Hermione");
map.put("Potter","Yashi");
map.put("Weasley","Ginny");
map.put("Gupta","Yashi");
return map;
//write your code here
}
public static void removeFirstNameDuplicates(Map<String, String> map) {
HashMap<String,String> copy = new HashMap<String,String>(map);
ArrayList<String> s1 = new ArrayList<String>();
for(Map.Entry<String,String>pair :copy.entrySet())
{
s1.add(pair.getValue());
}
for(Map.Entry<String,String>pair :copy.entrySet())
{
for(int i=0;i<s1.size();i++)
{
removeItemFromMapByValue(map,s1.get(i));
}
}
}
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) {
}
}