In this activity, you are required to implement a simple shape hierarchy in Java using inheritance and polymorphism concepts. The goal is to calculate and display the area of different shapes using inheritance ar polymorphism.

Instructions:

Shape Class:

Create a class named Shape with the following methods:

calculateArea $()$: Returns $0\mathrm{.}0($to be overridden by subclasses$).$

display$()$: Prints "Area: $"$ followed by the calculated area.

Circle Class $($extends Shape$)$:

Create a subclass named Circle that extends Shape.

Add a private attribute radius and a constructor that initializes it$.$

Create another subclass named Rectang le that extends Shape.

Add private attributes length and width, and a constructor that initializes them.

Override the calcu lateArea method to calculate the area of a rectangle using the formula length $**$ wi

Main Class:

In the Main class, create instances of Circ le and Rectang le using sample dimensions.

Call the display method on each instance to print the calculated areas.

Testing:

Compile and run your program to ensure that it produces the correct output, displaying the areas of the circle rectangle.

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