Java List Size sizeOf(List l)

Description

This function always returns the size of a list; no matter if it is null, 0 or >0.

License

Open Source License

Declaration

public static Integer sizeOf(List<?> l) 

Method Source Code

//package com.java2s;
/*/*from   w ww  . ja v  a  2 s. c  om*/
 * Copyright 2010 Research Studios Austria Forschungsgesellschaft mBH
 *
 * This file is part of easyrec.
 *
 * easyrec 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.
 *
 * easyrec 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 easyrec.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.*;

public class Main {
    /**
     * This function always returns the size of a list; no
     * matter if it is null, 0 or >0.
     */
    public static Integer sizeOf(List<?> l) {
        return l != null ? l.size() : 0;
    }
}

Related

1. getSize(List sourceList)
2. getSize(List sourceList)
3. size(List list)
4. size(Object[] list)
5. sizeNotNull(final List list)
6. sizeOfListMap(Map> map)
7. sizeOfStringToStringListMap( Map> m)
8. sizeSafe(List list)