Java String match phone number

public class Main {
    public static void main(String[] argv) throws Exception {
        String text = "13012312312";
        System.out.println(verifyMobile(text));
    }//  w  w w. ja va  2 s .  c  o  m

    public static boolean verifyMobile(String text) {
        boolean flag = false;
        String reg = "^1[3458][0-9]{9}$";
        flag = text.matches(reg);
        return flag;
    }
}

//package com.demo2s;

import java.util.regex.Pattern;

public class Main {
    public static void main(String[] argv) throws Exception {
        String str = "123456789";
        System.out.println(isTeleNumber(str));
    }//from   w  w  w . j a  v  a 2  s .  c  o  m

    private static final Pattern teleNumberPattern = Pattern.compile("^\\d{3}\\-\\d{8}|\\d{4}\\-\\d{7}$");

    public static boolean isTeleNumber(String str) {
        return teleNumberPattern.matcher(str).matches();
    }
}