Java tutorial
//package com.java2s; //License from project: Open Source License import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isEmail(String email) { if (null == email || "".equals(email.trim())) return false; // String strPattern = // "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]$"; Pattern p = Pattern.compile("^.*@{1}.+\\.{1}.*$"); Matcher m = p.matcher(email); return m.matches(); } }