Java Collection Empty nullOrEmpty(Collection c)

Description

Indicates whether a collection is null or empty.

License

Open Source License

Parameter

Parameter	Description
c	the collection to be tested

Return

true if the collection is null or empty

Declaration

public static <T> boolean nullOrEmpty(Collection<T> c) 

Method Source Code

//package com.java2s;
/*/*from w ww  . j ava  2 s.  c  o  m*/
 * XAdES4j - A Java library for generation and verification of XAdES signatures.
 * Copyright (C) 2010 Luis Goncalves.
 *
 * XAdES4j 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 3 of the License, or any later version.
 *
 * XAdES4j 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 XAdES4j. If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.Collection;

public class Main {
    /**
     * Indicates whether a collection is {@code null} or empty.
     * @param c the collection to be tested
     * @return {@code true} if the collection is {@code null} or empty
     */
    public static <T> boolean nullOrEmpty(Collection<T> c) {
        return null == c || c.isEmpty();
    }
}

Related

1. isNullOrEmpty(final Collection value)
2. isNullOrEmpty(final Collection collection)
3. isNullOrEmpty(T collection)
4. nullOrEmpty(Collection coll)
5. nullOrEmpty(Collection tested)
6. nullOrEmpty(final Collection in)
7. nullOrEmptyToDefault(final Collection collection, final Collection defaultValue)
8. nullToEmpty(Collection c)
9. nullToEmpty(Collection coll)