In this exercise, you have a base class Shape with a single method draw$()$ that prints $$Drawing a shape$.$

Create two subclasses, Circle and Square, that override the draw$()$ method to print $$Drawing a circle$$

and $$Drawing a square$$ respectively.

In the main method, an instance of the Shape class, s$,$ which is actually an instance of the Circle, then the

Square subclasses. When we call the draw$()$ method on these objects, the correct implementation is

called based on the actual type of the object, this is run$-$time polymorphism.

OUTPUT

The program must output: $$Drawing a circle$$ and $$Drawing a square$$

The draw$()$ method is overridden in the subclasses, and this allows for the program to determine which

method to use at runtime. This is known as runtime polymorphism or dynamic polymorphism, because

at runtime the JVM determines the actual type of the object and calls the corresponding method.

REQUIRED:

Complete the code, using polymophism $($method overrride$),$ with the required output:

Drawing a circle

Drawing a square

Upload your $.$java file with the completed code.

Ch$81\_$Ex$90\_$Shape$\_$Polymorphism$\_1$a$\_$stu.java

public class Ch$81\_$Ex$90\_$Shape$\_$Polymorphism$\_1$a$\_$stu

$\{$

public static void main$($String$[]$ args$)$

$\{$

Shape s $=$ new Circle$()$; $//$ create Circle object

s$.$draw$()$;

s $=$ new Square$()$; $//$ create Square object

s$.$draw$()$;

$\}$

$\}$

class Shape

$\{$

public void draw$()$

$\{$

System.out.println$("$Drawing a shape"$)$;

$\}$

$\}$

class Circle

$\{$

$//---$ INSERT CODE HERE $---//$

$\}$

class Square

$\{$

$//---$ INSERT CODE HERE $---//$

$\}$