Java Array Flatten flatten(Object[] array)

Description

Transform a multidimensional array into a one-dimensional list.

License

Open Source License

Parameter

Parameter	Description
array	Array (possibly multidimensional).

Return

a list of all the Object instances contained in array .

Declaration

public static Object[] flatten(Object[] array) 

Method Source Code

//package com.java2s;
/*//  w w w . j a v a  2 s.c  o m
 *  Java Information Dynamics Toolkit (JIDT)
 *  Copyright (C) 2017, Joseph T. Lizier
 *  
 *  This program 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.
 *  
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.util.List;
import java.util.ArrayList;

public class Main {
    /**
     * Transform a multidimensional array into a one-dimensional list.
     *
     * @param array Array (possibly multidimensional).
     * @return a list of all the {@code Object} instances contained in
     * {@code array}.
     */
    public static Object[] flatten(Object[] array) {
        final List<Object> list = new ArrayList<Object>();
        if (array != null) {
            for (Object o : array) {
                if (o instanceof Object[]) {
                    for (Object oR : flatten((Object[]) o)) {
                        list.add(oR);
                    }
                } else {
                    list.add(o);
                }
            }
        }
        return list.toArray();
    }
}

Related

1. flatten(byte[][] first)
2. flatten(E[][] a)
3. flatten(final Object[] array)
4. flatten(float[][] mat)
5. flatten(Object[] array)
6. flatten(Object[] lines, String sep)
7. flatten(String s[])
8. flatten(String[] strings, String separator)