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Java 计算元素索引的数组，将其添加到集合中。

欢马劈雪

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计算添加到集合中的元素索引的数组。

实例源码：

源代码：

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*  This file is part of the Jspresso framework.

*  Jspresso is free software: you can redistribute it and/or modify

*  it under the terms of the GNU Lesser General Public License as published by

*  the Free Software Foundation, either version 3 of the License, or

*  (at your option) any later version.

*  Jspresso is distributed in the hope that it will be useful,

*  but WITHOUT ANY WARRANTY; without even the implied warranty of

*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

*  GNU Lesser General Public License for more details.

*  You should have received a copy of the GNU Lesser General Public License

*  along with Jspresso.  If not, see <http://www.gnu.org/licenses/>.

//package com.nowjava;

import java.util.ArrayList;// 来 自 n o w j a v a . c o m - 时  代  Java

import java.util.Collection;

import java.util.Iterator;

import java.util.List;

public class Main {

public static void main(String[] argv) {

Collection smallCollection = java.util.Arrays.asList("asdf",

"nowjava.com");

Collection bigCollection = java.util.Arrays.asList("asdf",

"nowjava.com");
                /*来自 
                 时代Java - nowjava.com*/

System.out.println(java.util.Arrays

.toString(computeDifferenceIndices(smallCollection,

bigCollection)));

}

/**

* Computes the array of element indices which where added to a collection.

* @param smallCollection

*          the original collection.

* @param bigCollection

*          the collection with added elements.

* @return the the array of element indices which where added to the original

*         collection

public static int[] computeDifferenceIndices(

Collection<?> smallCollection, Collection<?> bigCollection) {

List<Integer> addedIndices = new ArrayList<>();

int index = 0;

for (Iterator<?> ite = bigCollection.iterator(); ite.hasNext(); index++) {

if (smallCollection == null
/**代码未完, 请加载全部代码(NowJava.com).**/

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执行结果：

本文系作者在时代Java发表，未经许可，不得转载。如有侵权，请联系nowjava@qq.com删除。

编辑于 2020-03-26 09:23:272020-03-26 09:23:27

实例源码

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