Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static Boolean checkCellPhone(String cellPhone) { Pattern pattern = Pattern.compile("^((13[0-9])|(15[0-9])|(18[0-9]))\\d{8}$"); Matcher matcher = pattern.matcher(cellPhone); return matcher.matches(); } }