1 package cn.check.com;
2
3 import java.util.Scanner;
4
5 public class CheckMail {
6
7 public static void main(String[] args) {
8 // TODO Auto-generated method stub
9 Scanner sc = new Scanner(System.in);
10 System.out.println("请输入邮箱:");
11 String mail = sc.nextLine();
12
13 // String
14 // scanmail="[a-zA-Z_0-9]+@[a-zA-Z_0-9]{2,6}(\\.[a-zA-Z_0-9]{2,3})+";//{2,6}2-6个字符,
15 // //(\\.[a-zA-Z_0-9]{2,3})+有的时候,123@qq.com.cn需要用()+来才有效果
16 String scanmail = "\\w+@\\w{2,6}(\\.\\w{2,3})+";
17 boolean flag = mail.matches(scanmail);
18 System.out.println(flag);
19 }
20
21 }
