菜鸟教程java第二十六篇
作者:互联网
Java 实例 - 数组交集
以下实例演示了如何使用 retainAll () 方法来计算两个数组的交集:
import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList objArray = new ArrayList(); ArrayList objArray2 = new ArrayList(); objArray2.add(0,"common1"); objArray2.add(1,"common2"); objArray2.add(2,"notcommon"); objArray2.add(3,"notcommon1"); objArray.add(0,"common1"); objArray.add(1,"common2"); objArray.add(2,"notcommon2"); System.out.println("array1 数组元素:"+objArray); System.out.println("array2 数组元素:"+objArray2); objArray.retainAll(objArray2); System.out.println("array2 & array1 数组交集为:"+objArray); } }
标签:第二十六,java,菜鸟,objArray,System,add,ArrayList,数组,objArray2 来源: https://www.cnblogs.com/rongzhang/p/15595930.html