Java Map Put putIfNotExist(Map map, K key, V value)

Description

put If Not Exist

License

Open Source License

Declaration

public static <K, V> void putIfNotExist(Map<K, V> map, K key, V value) 

Method Source Code

//package com.java2s;

import java.util.Map;

public class Main {
    public static <K, V> void putIfNotExist(Map<K, V> map, K key, V value) {
        if (!map.containsKey(key)) {
            map.put(key, value);/*from  w ww  .j a va2 s  .  c o m*/
        }
    }
}

Related

1. putIfAbsent(Map map, K key, V value)
2. putIfAbsent(Map map, S key, T val)
3. putIfAbsent(Map map, String name, String value)
4. putIfAbsentGet(Map map, K key, V value)
5. putIfNonNull(Map map, K key, V value)
6. putIfNotExists(final K key, final V value, final Map map)
7. putIfNotExists(Map map, K key, V value)
8. putIfNotNull(final Map map, final String name, final String value)
9. putIfNotNull(Map map, K key, V value)