Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isValidityEmailAddress(String address) { Pattern p = Pattern.compile("^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\\.([a-zA-Z0-9_-])+)+$"); Matcher m = p.matcher(address); return m.matches(); } }