Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.HashMap;

import java.util.Map;

public class Main {

    public static <K, V> Map<V, K> reverseKeyValue(Map<K, V> map) {
        if (map == null) {
            return null;
        }
        Map<V, K> newMap = new HashMap<V, K>();
        for (Map.Entry<K, V> entry : map.entrySet()) {
            newMap.put(entry.getValue(), entry.getKey());
        }
        return newMap;
    }
}