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.HashMap;

import java.util.Map;

public class Main {
    public static <K1, K2, V> Map<K2, V> mkMap(Map<K1, Map<K2, V>> multiMap, K1 key) {
        Map<K2, V> map = multiMap.get(key);
        if (map == null) {
            map = new HashMap<>();
            multiMap.put(key, map);
        }
        return map;
    }
}