Lab Goal : This lab was designed to teach you more object oriented programming and how to write a very

simple game. You will show that you understand inheritance as well by creating the Ball class.

Lab Description : Complete the code for the Ball class located in Ball.java. Test the Ball class

using the BallTestone.java and BallTestTwo.java files. As you are testing Ball, you will also be

retesting Block as Ball is and extension of Block.

The Ball is going to bounce around the screen. It will bounce around the screen because of checks placed in

the BallTest. You can change the boundaries to create a larger field for the Ball. Eventually, the Ball will

bounce off of the upper and lower walls and the paddles, but stop when it contacts the left and right walls.

public class Ball extends Block

$\{$

private int xSpeed;

private int yspeed;

public Ball $()($

super $(200,200)$;

xspeed $=3$;

yspeed $=1$;

$\}$

$//$add other Ball constructors

$//$set methods

public void moveAndDraw $($Graphics window$)$

$1$

$//$draw a white ball at

$//$old ball location

Speed$)$;

$\frac{\frac{?}{?}}{?}$ sety

$//$draw ball at new location

$\}$

$//$equals method

$//$get methods

public string tostring$()\{$

return $""$;

$\}$

$\}$

Sample Output $($ BallTestOne.java $)$

$2002001010$ java.awt.Color $[r=0,g=0,b=0],31$

$100901010$ java.awt.Color $[r=0,g=0,b=0],31$

$1001003050$ java.awt.Color $[r=0,g=0,b=0],31$

$1001003050$ java.awt.Color $[r=0,g=0,b=255],31$

$1001003050$ java.awt.Color $[r=0,g=0,b=255],56$

$1001003050$ java.awt.Color $[r=0,g=0,b=255],56$

false

Files Needed ::

Block. java

Ball. java

BallTestone. java

BallTestTwo. java

Tester.java