java海洋

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class regex {

/**

* @param args

*/

public static void main(String[] args) {

String email = null;

Pattern p = Pattern.compile("([a-zA-Z0-9_\\-]){1,}@[a-zA-Z0-9_\\-]{1,}\\."+

"[a-zA-Z0-9_\\-]{1,}$");

Matcher m = p.matcher(args[0]);

if(m.find()){

System.out.println("邮箱地址如下：");

System.out.println("Match "+m.group());

}else

{

System.out.println("请重新输入");

}

}

}