Java Object to Array toArray(Object value)

Description

to Array

License

GNU General Public License

Declaration

@SuppressWarnings("unchecked")
    public static Object[] toArray(Object value) 

Method Source Code

//package com.java2s;
/**//from w  w  w. j a v a2  s .  c  om
 *  Copyright (c) 1997-2013, www.tinygroup.org (luo_guo@icloud.com).
 *
 *  Licensed under the GPL, Version 3.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.gnu.org/licenses/gpl.html
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import java.util.List;

public class Main {
    private static final Object[] EMPTY_ARRAY = new Object[0];

    @SuppressWarnings("unchecked")
    public static Object[] toArray(Object value) {
        if (value == null) {
            return EMPTY_ARRAY;
        }
        Object[] values;
        if (value.getClass().isArray()) {
            values = (Object[]) value;
        } else if (List.class.isInstance(value)) {
            List<Object> list = (List<Object>) value;
            values = list.toArray();
        } else {
            values = new Object[] { value };
        }
        return values;
    }
}

Related

1. toArray(Object obj)
2. toArray(Object obj)