Petrol Station Membership Card System

A Java application that simulates a petrol station membership card system with different card types offering various discounts.

Features

• Membership Card Types:

  • Golden Card: 20% discount (requires initial top-up ≥ $5000)
  • Silver Card: 10% discount (requires initial top-up ≥ $2000)

• Card Operations:

  • Create new membership cards
  • Top-up card balance
  • Make payments with automatic discounts
  • View card information

Class Structure

1. MembershipCard (Base Class)

   • Core card functionality
   • Basic payment processing
   • Balance management

2. GoldenCard (Subclass)

   • 20% discount on payments
   • Specialized info display

3. SilverCard (Subclass)

   • 10% discount on payments
   • Specialized info display

4. Test (Main Class)

   • User interface
   • Card management flow

How to Use

Example Usage

Welcome to the petrol station! Do you have a membership card?

1. Yes
2. No

[Select 2 to create new card]

Which type of card do you want to apply for?

1. Golden card (The first top-up amount is more than $5000...
2. Silver card (The first top-up amount is more than $2000...
3. Exit

[Select 1 and top-up $5000]

Please set your card ID: [Enter ID] Successfully topped up: 5000.0 Balance after top-up: 5000.0

CardId: [Your ID] Balance: 5000.0 CardType: Golden Card

[Now you can make payments with 20% discount]