Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean checkEmail(String email) { String ps = "^\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$"; Pattern p = Pattern.compile(ps); Matcher m = p.matcher(email); if (!m.matches()) { return false; } return true; } }