Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Mozilla Public License 

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

public class Main {
    public static <T, U> void putIfAbsent(Map<T, U> destination, Map<T, U> source) {
        for (Entry<T, U> entry : source.entrySet()) {
            if (!destination.containsKey(entry.getKey())) {
                destination.put(entry.getKey(), entry.getValue());
            }
        }
    }
}