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