Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * This software is in the public domain under CC0 1.0 Universal plus a
 * Grant of Patent License.
 *
 * To the extent possible under law, the author(s) have dedicated all
 * copyright and related and neighboring rights to this software to the
 * public domain worldwide. This software is distributed without any
 * warranty.
 *
 * You should have received a copy of the CC0 Public Domain Dedication
 * along with this software (see the LICENSE.md file). If not, see
 * <http://creativecommons.org/publicdomain/zero/1.0/>.
 */

import java.util.*;

public class Main {
    @SuppressWarnings("unchecked")
    public static boolean addToSetInMap(Object key, Object value, Map theMap) {
        if (theMap == null)
            return false;
        Set theSet = (Set) theMap.get(key);
        if (theSet == null) {
            theSet = new LinkedHashSet();
            theMap.put(key, theSet);
        }
        return theSet.add(value);
    }
}