Here you can find the source of isValidEmailAddress(String email)
public static boolean isValidEmailAddress(String email)
//package com.java2s; /*/* w ww . ja va 2 s.c om*/ This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 */ import java.util.regex.Pattern; public class Main { public static boolean isValidEmailAddress(String email) { return (email != null ? (Pattern.compile("^[_a-z0-9-+]+(\\.[_a-z0-9-+]+)*@[a-z0-9-]+(\\.[a-z0-9-]+)*(\\.[a-z]{2,6})$", //$NON-NLS-1$ Pattern.CASE_INSENSITIVE).matcher(email).matches()) : false); } }