Due Date

Overview

This program demonstrates Object-Oriented Programming (OOP) concepts such as class creation, inheritance, constructors, and method overriding. The program consists of a Mobile class and three subclasses, Android, iPhone, and BlackBerry.

Make sure to follow the Single Responsibility Principle and break each class into its own file.

Step 1: Create the Mobile Class

• Define a class named Mobile.
• Declare the following instance variables:
  • manufacture (String): Manufacturer name.
  • operatingSystem (String): Operating system type.
  • model (String): Model name.
  • cost (double): Price of the mobile device.
• Implement two constructors:
  • One constructor accepting all four properties.
  • Another constructor accepting only manufacture and operatingSystem.
• Override the toString() method to return a formatted string of mobile details.

Step 2: Create the Android Subclass

• Define a subclass Android that extends Mobile.
• Implement two constructors that invoke the parent class constructors using super.
• Override the toString() method to include Android Details.

Step 3: Create the iPhone Subclass

• Define a subclass iPhone that extends Mobile.
• Implement two constructors similar to the Android class.
• Override the toString() method to include iPhone Details.

Step 4: Create the BlackBerry Subclass

• Define a subclass BlackBerry that extends Mobile.
• Implement two constructors similar to the Android class.
• Override the toString() method to include BlackBerry Details.

Step 5: Create the Main Class

• Define a Main class with a main() method.
• Instantiate objects of Mobile, Android, iPhone, and BlackBerry classes.
• Implement a method printMobileDetails() that accepts a Mobile object and prints its details.
• Call printMobileDetails() for each object to demonstrate polymorphism.

Polymorphic Method

Enhance the program by creating a polymorphic method getDiscountedPrice() in the Mobile class that calculates a discount based on the device type. Override this method in the Android, iPhone, and BlackBerry subclasses to apply different discount rates. Test this method in the Main class by calling it polymorphically.

Expected Output

Manufacturer: Generic, OS: OS, Model: Basic Model, Cost: $500.0
Discounted Price: $475.0

Manufacturer: Samsung, OS: Android, Model: Galaxy S21, Cost: $1000.0 (Android Details)
Discounted Price: $900.0

Manufacturer: Apple, OS: iOS, Model: iPhone 13, Cost: $1200.0 (iPhone Details)
Discounted Price: $1080.0

Manufacturer: BlackBerry, OS: BB OS, Model: BlackBerry Key2, Cost: $800.0 (BlackBerry Details)
Discounted Price: $680.0