cut array by size - Android java.lang

Android examples for java.lang:array resize

  1. HOME
  2. Android
  3. java.lang
  4. array resize

Description

cut array by size

Demo Code

/**/* ww  w. j av  a 2  s  .  c o  m*/
 * 
 * Copyright 2008 - 2009
 * 
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * 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.
 * 
 * @project loonframework
 * @author chenpeng
 * @email?ceponline@yahoo.com.cn
 * @version 0.1.1
 */
//package com.java2s;
import java.lang.reflect.Array;

public class Main {

    public static Object cut(Object obj, int size) {
        int j;
        if ((j = Array.getLength(obj)) == 1) {
            return Array.newInstance(obj.getClass().getComponentType(), 0);
        }
        int k;
        if ((k = j - size - 1) > 0) {
            System.arraycopy(obj, size + 1, obj, size, k);
        }
        j--;
        Object obj1 = Array.newInstance(obj.getClass().getComponentType(),
                j);
        System.arraycopy(obj, 0, obj1, 0, j);
        return obj1;
    }
}

Related Tutorials