Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/**
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2006 Sun Microsystems Inc. All Rights Reserved
 *
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the License at
 * https://opensso.dev.java.net/public/CDDLv1.0.html or
 * opensso/legal/CDDLv1.0.txt
 * See the License for the specific language governing
 * permission and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at opensso/legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * $Id: CollectionUtils.java,v 1.2 2008/06/25 05:53:05 qcheng Exp $
 *
 */

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

public class Main {
    /**
     * Returns set of string. This is a convenient method for adding a set of 
     * string into a map. In this project, we usually have the 
     * <code>Map&lt;String, Set&lt;String&gt;&gt; and many times, we just 
     * want to add a string to the map.
     *
     * @param key Key to the entry in the map.
     * @param map Map of String to Set of String.
     * @param value Value to be added to the map referenced by <code>key</code>.
     * @return Set of string.
     */
    public static Set<String> putSetIntoMap(String key, Map<String, Set<String>> map, String value) {
        Set<String> set = new HashSet<String>();
        set.add(value);
        map.put(key, set);
        return set;
    }
}