Java HashMap Counter incrementHashMap(HashMap map, String key, int n)

Description

increment Hash Map

License

Apache License

Declaration

public static void incrementHashMap(HashMap map, String key, int n) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.HashMap;

public class Main {
    public static void incrementHashMap(HashMap map, String key, int n) {
        int count;
        Integer countI = (Integer) map.get(key);
        if (countI == null)
            count = 0;/* ww  w. j  av  a2  s  .co m*/
        else {
            count = countI;
        }
        map.put(key, count + n);
    }
}

Related

1. increment(HashMap m, X key)
2. incrementMap(HashMap map, Integer key)
3. incrementTwoLevelHashMap(HashMap map, String key1, String key2, int n)