Main.java Source code

Java tutorial

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.util.HashMap;

import java.util.Map;

public class Main {
    /** Indicates whether collection elements should be actually checked. */
    private static final boolean DEBUG = false;

    @SuppressWarnings("unchecked")
    public static <K, V> Map<K, V> checkMap(Map<?, ?> map, Class<K> keyType, Class<V> valueType) {
        if (DEBUG) {
            Map<K, V> copy = new HashMap<K, V>();
            for (Map.Entry<?, ?> entry : map.entrySet()) {
                copy.put(keyType.cast(entry.getKey()), valueType.cast(entry.getValue()));
            }
            return copy;
        }
        return (Map<K, V>) map;
    }
}