Java tutorial
//package com.java2s; public class Main { public static boolean isValidEmailAddress(String email) { String EMAIL_REGEX = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@" + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$"; return email.matches(EMAIL_REGEX); // Pattern p = Pattern.compile(EMAIL_REGEX); // if (!(p.matcher(email).matches())) // return false; // return true; } }