Here you can find the source of isMobile(String mobiles)
public static boolean isMobile(String mobiles)
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isMobile(String mobiles) { Pattern p = Pattern .compile("^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$"); Matcher m = p.matcher(mobiles); return m.matches(); }/* w ww . j a va2s. co m*/ }