求java程序：用键盘向控制台输入一个E-mail地址，分析该地址获取并输出域名如：“126.co

Question

如题所述

Answer 1

import java.util.Scanner;
public class EmailAnalyzer {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// 提示用户输入E-mail地址
System.out.print("请输入E-mail地址：");
String email = scanner.nextLine();
// 获取域名
int indexOfAtSign = email.indexOf('@');
String domain = email.substring(indexOfAtSign + 1);
// 输出域名
System.out.println("域名：" + domain);
}
}

Answer 2

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String email = scan.nextLine();
String reg = ".*@(.*)";
Pattern p = Pattern.compile(reg);
Matcher m =p.matcher(email);
while(m.find()){
String domain = m.group(1);
System.out.println("域名为:"+domain);
}

}