Java tutorial
//package com.java2s; /** * Copyright (C) 2012 Whisper Systems * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import android.telephony.PhoneNumberUtils; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { private static final Pattern emailPattern = android.util.Patterns.EMAIL_ADDRESS; public static boolean isValidSmsOrEmail(String number) { return PhoneNumberUtils.isWellFormedSmsAddress(number) || isValidEmail(number); } public static boolean isValidEmail(String number) { Matcher matcher = emailPattern.matcher(number); return matcher.matches(); } }