Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Collection;

import java.util.Map;
import java.util.Map.Entry;

public class Main {

    public static <K> void merge(Map<K, Float> map1, Map<K, Float> map2) {
        if (map1 == null || isEmpty(map2)) {
            return;
        }

        for (Entry<K, Float> entry : map2.entrySet()) {
            K key = entry.getKey();
            Float value = entry.getValue();
            Float value2 = map1.get(key);

            if (value2 != null) {
                value += value2;
            }
            map1.put(key, value);
        }
    }

    public static <T> boolean isEmpty(Collection<T> col) {
        if (col == null || col.isEmpty()) {
            return true;
        }

        return false;
    }

    public static <K, V> boolean isEmpty(Map<K, V> map) {
        if (map == null || map.isEmpty()) {
            return true;
        }

        return false;
    }
}