Java Array Length Get arrayLength(Object array, int defaultIfNull, int defaultIfNotArray)

Description

array Length

License

GNU General Public License

Declaration

private static int arrayLength(Object array, int defaultIfNull,
            int defaultIfNotArray) 

Method Source Code

//package com.java2s;
/**//from  ww w .  j a  v a 2s.  com
 *  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.
 */

public class Main {
    private static int arrayLength(Object array, int defaultIfNull,
            int defaultIfNotArray) {
        if (array == null) {
            return defaultIfNull; // null
        } else if (array instanceof Object[]) {
            return ((Object[]) array).length;
        } else if (array instanceof long[]) {
            return ((long[]) array).length;
        } else if (array instanceof int[]) {
            return ((int[]) array).length;
        } else if (array instanceof short[]) {
            return ((short[]) array).length;
        } else if (array instanceof byte[]) {
            return ((byte[]) array).length;
        } else if (array instanceof double[]) {
            return ((double[]) array).length;
        } else if (array instanceof float[]) {
            return ((float[]) array).length;
        } else if (array instanceof boolean[]) {
            return ((boolean[]) array).length;
        } else if (array instanceof char[]) {
            return ((char[]) array).length;
        } else {
            return defaultIfNotArray; // not an array
        }
    }
}

Related

1. arrayBounds(int arrayLength, int offset, int length)
2. arrayCounter(T[] x)
3. arrayLenght(Object array)
4. arrayLength(Object o)
5. arrayLength(Object[] ar)
6. length(byte[] array)
7. length(byte[] array)