Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.text.TextUtils;

public class Main {
    private static final int CV2_LENGTH_MIN = 3;
    private static final int CV2_LENGTH_MAX = 4;

    public static boolean isValidCv2Number(String cv2) {
        if (TextUtils.isEmpty(cv2)) {
            return false;
        }

        if (cv2.length() < CV2_LENGTH_MIN || cv2.length() > CV2_LENGTH_MAX) {
            return false;
        }

        // check all numeric
        if (!TextUtils.isDigitsOnly(cv2)) {
            return false;
        }

        return true;
    }
}