Java 实例 - 数组并集
Java 教程
· 2019-02-10 13:43:35
以下实例演示了如何使用 union ()方法来计算两个数组的并集：
Main.java 文件
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
public class Main {
public static void main(String[] args) throws Exception {
String[] arr1 = { "1", "2", "3" };
String[] arr2 = { "4", "5", "6" };
String[] result_union = union(arr1, arr2);
System.out.println("并集的结果如下：");
for (String str : result_union) {
System.out.println(str);
}
}
// 求两个字符串数组的并集，利用set的元素唯一性
public static String[] union(String[] arr1, String[] arr2) {
Set<String> set = new HashSet<String>();
for (String str : arr1) {
set.add(str);
}
for (String str : arr2) {
set.add(str);
}
String[] result = { };
return set.toArray(result);
}
}
以上代码运行输出结果为：
并集的结果如下： 3 2 1 6 5 4
点击查看所有 Java 教程 文章: https://codercto.com/courses/l/12.html
ANSI Common Lisp
Paul Graham / Prentice Hall / 1995-11-12 / USD 116.40
For use as a core text supplement in any course covering common LISP such as Artificial Intelligence or Concepts of Programming Languages. Teaching students new and more powerful ways of thinking abo......一起来看看 《ANSI Common Lisp》 这本书的介绍吧!
