abstract class: Basics

In this problem, you will create a program that defines an abstract class Shape, implements a concrete subclass Circle with the draw() method, and displays the result to standard output.

Learning Objective: Understand basic usage of abstract classes and abstract methods

Overview

Create an abstract class representing a Shape and implement a concrete shape class (Circle) that inherits from it. Define an abstract method without implementation in the abstract class.

Specifications

• Shape class (abstract): Define abstract method draw()
• Circle class: Inherit from Shape, draw() outputs "Drawing a circle"
• In Main class, create Circle object and call draw()

Output Format

Drawing a circle