Java

TOPIC – INTERFACES & POLYMORPHISM

LESSON WORK

QUESTION 0 (GROUP WORK) (2022)

Create a Triangle, Circle and Rectangle class. Create a Tester class. Add the NOOPDraw class to this project.

Create the following interface:

public interface Drawable

{

public void draw();

}

Make Triangle, Circle and Rectangle implement Drawable. Implement the draw method in each class.

In Tester, create a Drawable array. Add objects of type Triangle, Circle and Rectangle to the array. Loop over the array to draw all objects.

QUESTION 1

Do the Short Answer Questions – Interfaces & Polymorphism from Java OOP Exercises II.

QUESTION 2

Do the Collidable Interface work from Java OOP Exercises II.

TEACHER NOTE: Could use another question here.