Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isPhone(String str) { Pattern p = Pattern.compile("^((14[0-9])|(13[0-9])|(15[0-9])|(17[0-9])|(18[0-9]))\\d{8}$"); Matcher m = p.matcher(str); return m.matches(); } }