Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isPhone(String phoneNum) { try { if (null != phoneNum) { Pattern p = Pattern.compile("1[358][0-9]{9}"); Matcher m = p.matcher(phoneNum); return m.matches(); } } catch (Exception e) { e.printStackTrace(); } return false; } }