Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2009 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Comparator;

import java.util.Map.Entry;

public class Main {
    public static <K, V> Comparator<Entry<K, V>> entryComparator(final Comparator<? super K> keyComparator) {
        return new Comparator<Entry<K, V>>() {
            @Override
            @SuppressWarnings("unchecked")
            // no less safe than putting it in the map!
            public int compare(Entry<K, V> a, Entry<K, V> b) {
                return (keyComparator == null) ? ((Comparable) a.getKey()).compareTo(b.getKey())
                        : keyComparator.compare(a.getKey(), b.getKey());
            }
        };
    }
}