Java List Null Empty isEmpty(List aList)

Description

The isEmpty method is a helper for determining if a list is empty or null and is null safe to boot!

License

Open Source License

Parameter

Parameter	Description
aList	a list of objects to check

Return

true if null or empty, false otherwise.

Declaration

public static Boolean isEmpty(List<?> aList) 

Method Source Code

//package com.java2s;
/*/*from   ww w.  j av  a2 s.  com*/
 * The MIT License
 *
 * Copyright 2017 OnCore Consulting LLC, All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import java.util.List;

public class Main {
    /**
     * The <code>isEmpty</code> method is a helper for determining if a list is
     * empty or null and is null safe to boot!
     *
     * @param aList a list of objects to check
     *
     * @return true if null or empty, false otherwise.
     */
    public static Boolean isEmpty(List<?> aList) {
        if (aList == null || aList.isEmpty()) {
            return Boolean.TRUE;
        } else {
            return Boolean.FALSE;
        }
    }
}

Related

1. isEmpty(final List objList)
2. isEmpty(java.util.List list)
3. isEmpty(List list)
4. isEmpty(List values)
5. isEmpty(List list)
6. isEmpty(List collection)
7. isEmpty(List list, String message)
8. isEmpty(List obj)
9. isEmpty(List list)