Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static boolean isValidCardNumber(String cardNumber) {
        boolean isValid = false;

        String expression = "^.{12,16}$";
        CharSequence inputStr = cardNumber;

        Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(inputStr);
        if (matcher.matches()) {
            isValid = true;
        }
        return isValid;
    }
}