Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * This file is part of McIDAS-V
 *
 * Copyright 2007-2015
 * Space Science and Engineering Center (SSEC)
 * University of Wisconsin - Madison
 * 1225 W. Dayton Street, Madison, WI 53706, USA
 * http://www.ssec.wisc.edu/mcidas
 * 
 * All Rights Reserved
 * 
 * McIDAS-V is built on Unidata's IDV and SSEC's VisAD libraries, and
 * some McIDAS-V source code is based on IDV and VisAD source code.  
 * 
 * McIDAS-V is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 * 
 * McIDAS-V 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 Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser Public License
 * along with this program.  If not, see http://www.gnu.org/licenses.
 */

import java.util.Collection;
import java.util.Collections;

public class Main {
    /**
     * Creates a new {@code cl} instance (limited to things implementing 
     * {@link Collection}) populated with the {@literal "varargs"}. Useful if
     * you truly despise {@link #arr(Object...)}, {@link #list(Object...)}, 
     * or {@link #set(Object...)}.
     * 
     * <p>Example: {@code Collection<Integer> ints = collect(PriorityBlockingQueue.class, 1, 2, 3);}
     * 
     * @param cl A (non-abstract!) class that implements {@code Collection}. Cannot be {@code null}.
     * @param elements Objects that will be added to the collection.
     * 
     * @return An instance of {@code cl} containing the given objects.
     * 
     * @throws RuntimeException
     * if {@link java.lang.reflect.Constructor#newInstance(Object...) Constructor#newInstance(Object...)}
     * had problems.
     * 
     * @see #arr(Object...)
     * @see #list(Object...)
     * @see #set(Object...)
     */
    @SuppressWarnings({ "unchecked", "rawtypes" })
    // the only things being added to the collection are objects of type "E"
    public static <E> Collection<E> collect(Class<? extends Collection> cl, E... elements) {
        try {
            Collection<E> c = cl.getConstructor().newInstance();
            Collections.addAll(c, elements);
            return c;
        } catch (Exception e) {
            throw new RuntimeException("Problem creating a new " + cl, e);
        }
    }
}