Java Array Remove removeNulls(Object[] arr)

Description

Removes all null elements in an Object array.

License

Open Source License

Return

array arr less any null elements

Declaration

public static Object[] removeNulls(Object[] arr) 

Method Source Code

//package com.java2s;
/* This file is part of Math4J.
 * Math4J 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 2 of the License, or
 * (at your option) any later version./*from   w  ww .  ja va  2  s .  c  o  m*/
 *
 * Math4J 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 Math4J; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 * 
 * Copyright 2005 Anthony Magee
 */

import java.util.ArrayList;

public class Main {
    /**
     * Removes all null elements in an Object array. Be sure to cast the array
     * back to the class type you need.
     * 
     * @return array <code>arr</code> less any null elements
     */
    public static Object[] removeNulls(Object[] arr) {
        ArrayList<Object> reply = new ArrayList<Object>(arr.length);
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] != null)
                reply.add(arr[i]);
        }

        return reply.toArray();
    }
}

Related

1. removeMethodsOption(String[] args)
2. removeNaN(double[] x1)
3. removeNodes(T[] array, T sampleNode)
4. removeNull(T[] data)
5. removeNullElements(String[] x)
6. removeNulls(T[] array)
7. removeNulls(T[] array)
8. removeNulls(T[] input)
9. removeNullsFromStringArray(String[] array)