Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isValidUserId(String userid) { Pattern p = Pattern.compile("^((14[5,7])|(13[0-9])|(15[^4,\\D])|(18[0-3,5-9]))\\d{8}$"); Matcher matcher = p.matcher(userid); return matcher.matches(); } }