Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * SubCherry - Cherry Picking with Trac and Subversion
 * Copyright (C) 2014 Bernhard Haumacher and others
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.HashSet;

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

public class Main {
    public static <K, V> Set<V> mkSet(Map<K, Set<V>> multiMap, K key) {
        Set<V> list = multiMap.get(key);
        if (list == null) {
            list = new HashSet<>();
            multiMap.put(key, list);
        }
        return list;
    }
}