Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (C) 2012 Philip W. Sorst <philip@sorst.net>
 * and individual contributors as indicated
 * by the @authors tag.
 *
 * 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;

import java.util.SortedSet;
import java.util.TreeSet;

public class Main {
    public static <K, V extends Comparable<? super V>> SortedSet<Map.Entry<K, V>> entriesSortedByValues(
            Map<K, V> map) {

        SortedSet<Map.Entry<K, V>> sortedEntries = new TreeSet<Map.Entry<K, V>>(new Comparator<Map.Entry<K, V>>() {

            @Override
            public int compare(Map.Entry<K, V> e1, Map.Entry<K, V> e2) {

                int res = e1.getValue().compareTo(e2.getValue());
                /* Preserve items with equal values */
                return res != 0 ? res : 1;
            }
        });
        sortedEntries.addAll(map.entrySet());

        return sortedEntries;
    }
}