Abstract Class

JAVASCRIPT

You need to perform following things to demonstrate the concept of abstract class.

Step 1: Create the abstract class that has following methods.

a. Calculate the area of circle(Abstract method)

b. Calculate the area of triangle(Abstract method)

c. Calculate the area of rectangle(Method with implementation)

Step 2: Create another class that extends above class and provide implementation of abstract methods.

Step 3: Create the main method inside above class and display output of area of circle, area of triangle and area of rectangle.

PLEASE PROVIDE:

Java program with both the classes

An output screenshot created using Microsoft Word