Java tutorial
//package com.java2s; //License from project: Apache License import java.util.Map; public class Main { /** * Get the value from the map for the given key. It the value does not exist, return the given * defaultValue. * * @param <K> key type * @param <V> value type * @param map map * @param key key * @param defaultValue default value if the value is null. * @return value */ public static <K, V> V getValue(Map<K, V> map, K key, V defaultValue) { V v = map.get(key); if (v == null) { return defaultValue; } return v; } }