Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class Main {
    public static <K, V> void add(Map<K, List<V>> map, K key, V value) {
        if (map.containsKey(key)) {
            map.get(key).add(value);
        } else {
            List<V> list = new ArrayList<>();
            list.add(value);
            map.put(key, list);
        }
    }
}