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Java 返回包含集合的两个数组之间共享的元素数。返回两个列索引数组共享的元素数。

欢马劈雪

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返回包含集合的两个数组之间共享的元素数。返回两个列索引数组共享的元素数。

实例源码：

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//package com.nowjava;//时代Java公众号 - nowjava.com 提 供

public class Main {

public static void main(String[] argv) throws Exception {

int[] arra = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

int[] arrb = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

System.out.println(countCommonElements(arra, arrb));

}

/**

* Returns the number of elements shared between the two arrays containing

* sets.<p>

* Return the number of elements shared by two column index arrays.

* This method assumes that each of these arrays contains a set (each

* element index is listed only once in each index array). Otherwise the

* returned number will NOT represent the number of unique column indexes

* shared by both index array.

* @param arra int[]; first array of column indexes.

* @param arrb int[]; second array of column indexes

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

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