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从数组中删除一个元素。
/*from nowjava - 时 代 Java*/ /** * The contents of this file are subject to the Mozilla Public * License Version 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Initial Developer of this code is Technology Concepts * and Design, Inc. * Copyright (C) 2000 Technology Concepts and Design, Inc. All * Rights Reserved. * * Contributor(s): Eric B. Ridge (Technology Concepts and Design, Inc.) * * Alternatively, the contents of this file may be used under the * terms of the GNU General Public License Version 2 or later (the * "GPL"), in which case the provisions of the GPL are applicable * instead of those above. If you wish to allow use of your * version of this file only under the terms of the GPL and not to * allow others to use your version of this file under the MPL, * indicate your decision by deleting the provisions above and * replace them with the notice and other provisions required by * the GPL. If you do not delete the provisions above, a recipient * may use your version of this file under either the MPL or the * GPL. * */ //package com.nowjava; public class Main { public static void main(String[] argv) throws Exception { Object[] array = new String[] { "1", "abc", "level", null, "nowjava.com", "asdf 123" }; int idx = 2; System.out.println(removeIndex(array, idx)); } /** * Remove an element from an array. * * @param array the array to remove an element from * @param idx the index of the element to remove * * @return a new array containing all objects, less object at position idx. Castable into type of array[0] */ public static Object removeIndex(Object[] array, int idx) { if (idx < 0 || idx >= array.length) throw new IndexOutOfBoundsException("" + idx + " not within [0, " + array.length + "]"); if (array.length == 0)