Implementation of class Cannonball Program plan: Filename: “Cannonball.java” Import the required packages. Define the “Cannonball” class. Declare the class members. Create a constructor “Cannonball()”. Initialize the class members. Create a method “move()”. Set the values. Create a method “getX()”. Return the value of “xPos”. Create a method “getY()”. Return the value of “yPos”. Create a method “shoot()”. Set the value of “xVel”. Set the value of “yVel”. Iterate a “do.. while” loop up to “yPos > 0”. Call the method “move()”. Print the values. Filename: “FireCannonball.java” Import the required packages. Define the “FireCannonball” class. Define the main method. Prompt the user to enter the starting angle. Create the object of “Scanner” class. Scan for the value. Prompt the user to enter the velocity. Scan for the value. Create an object for “FireCannonball” class. Call the method “shoot”.

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Chapter 8, Problem 11PP

Program Plan Intro

Implementation of class Cannonball

Program plan:

Filename: “Cannonball.java”

Import the required packages.

Define the “Cannonball” class.

Declare the class members.

Create a constructor “Cannonball()”.

Initialize the class members.

Create a method “move()”.

Set the values.

Create a method “getX()”.

Return the value of “xPos”.

Create a method “getY()”.

Return the value of “yPos”.

Create a method “shoot()”.

Set the value of “xVel”.

Set the value of “yVel”.

Iterate a “do.. while” loop up to “yPos > 0”.

Call the method “move()”.

Print the values.

Filename: “FireCannonball.java”

Import the required packages.

Define the “FireCannonball” class.

Define the main method.

Prompt the user to enter the starting angle.

Create the object of “Scanner” class.

Scan for the value.

Prompt the user to enter the velocity.

Scan for the value.

Create an object for “FireCannonball” class.

Call the method “shoot”.

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