Java 返回数组中元素的索引
返回数组中元素的索引
实例源码：
源代码：
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/*3
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* http://code.google.com/p/ametro/5
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* Transport map viewer for Android platform7
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* Copyright (C) 2009-2010 contacts@ametro.org Roman Golovanov and other9
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* respective project committers (see project home page)11
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*13
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* This program is free software: you can redistribute it and/or modify15
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* it under the terms of the GNU General Public License as published by17
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* the Free Software Foundation, either version 3 of the License, or19
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* (at your option) any later version.21
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*23
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* This program is distributed in the hope that it will be useful,25
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* but WITHOUT ANY WARRANTY; without even the implied warranty of27
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the29
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* GNU General Public License for more details.31
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*33
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* You should have received a copy of the GNU General Public License35
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* along with this program. If not, see <http://www.gnu.org/licenses/>.37
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* 39
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*///时代Java公众号 - N o w J a v a . c o m 提供41
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//package com.nowjava;43
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public class Main {46
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public static void main(String[] argv) {48
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String[] array = new String[] { "1", "abc", "level", null,50
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"nowjava.com", "asdf 123" };52
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String value = "nowjava.com";54
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System.out.println(indexOf(array, value));56
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}58
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public static int indexOf(String[] array, String value) {61
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if (value == null)63
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return -1;65
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