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 isChinaPhoneNumber(String phoneNum) { String PHONE_NUMBER_PATTERN = "^1[3578]\\d{9}"; Pattern p = Pattern.compile(PHONE_NUMBER_PATTERN); Matcher m = p.matcher(phoneNum); return m.matches(); } }