Animation of cars in the opposite directions Program plan: In a file “Car.java”, import the necessary packages and create a class “Car”, Declare the necessary variables. Define the constructor to set the initial x and y position. Declare the method “draw ()” to draw the car, Create “Rectangle” object. Create “Ellipse2D” object. Create “Ellipse2D” object. Create “Point2D” object for the bottom of the front wind shield. Create “Point2D” object for the front of the roof. Create “Point2D” object for the rear of the roof. Create “Point2D” object for the bottom of the rear wind shield. Create “Line2D” object for the top roof. Create “Line2D” object for the rear wind shield. Call the method “draw()” to draw the car body. Call the method “draw()” to draw the car’s front tire. Call the method “draw()” to draw the car’s front wind shield. Call the method “draw()” to draw the car’s roof top. Call the method “draw()” to draw the car’s rear wind shield. Define the method “translate()” that translate the x and y position. In a file “CarComponent.java”, import necessary packages, and create a class “CarComponent”, Declare the “ArrayList” for “Car” objects. Define the constructor to create the “ArrayList”. Define the method “add()” that calls “add()” method to add the car component to the list. Define the method “paintComponent ()”, Call the super class method. Create “Graphics2D” object. Create loop to iterate over car components, Call the method “draw()”. In a file “CarMover.java”, import necessary packages, and create a class “CarMover”, Declare and initialize the frame’s width and height. Define the “main()” method. Create “JFrame” object. Set the frame size. Set the frame title. Set the operation on the frame. Create “CarComponent” object. Create two “Car” objects. Call the method “add()” to add the first car component to the list. Call the method “add()” to add the second car component to the list. Add the component into the frame. Make the frame visible. Create a class “TimerListener”, Define the method “actionPerformed()”, Call the method “translate()” with “(1,0)” as arguments. Call the method “translate()” with “(-1,0)” as arguments. Call the method “repaint()”. Create an object for “TimerListener”, Set the milliseconds between the timer ticks. Create the object for “Timer”. Call the method “start()”.

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Chapter 11, Problem 4PP

Program Plan Intro

Animation of cars in the opposite directions

Program plan:

In a file “Car.java”, import the necessary packages and create a class “Car”,

Declare the necessary variables.

Define the constructor to set the initial x and y position.

Declare the method “draw ()” to draw the car,

Create “Rectangle” object.

Create “Ellipse2D” object.

Create “Ellipse2D” object.

Create “Point2D” object for the bottom of the front wind shield.

Create “Point2D” object for the front of the roof.

Create “Point2D” object for the rear of the roof.

Create “Point2D” object for the bottom of the rear wind shield.

Create “Line2D” object for the top roof.

Create “Line2D” object for the rear wind shield.

Call the method “draw()” to draw the car body.

Call the method “draw()” to draw the car’s front tire.

Call the method “draw()” to draw the car’s front wind shield.

Call the method “draw()” to draw the car’s roof top.

Call the method “draw()” to draw the car’s rear wind shield.

Define the method “translate()” that translate the x and y position.

In a file “CarComponent.java”, import necessary packages, and create a class “CarComponent”,

Declare the “ArrayList” for “Car” objects.

Define the constructor to create the “ArrayList”.

Define the method “add()” that calls “add()” method to add the car component to the list.

Define the method “paintComponent ()”,

Call the super class method.

Create “Graphics2D” object.

Create loop to iterate over car components,

Call the method “draw()”.

In a file “CarMover.java”, import necessary packages, and create a class “CarMover”,

Declare and initialize the frame’s width and height.

Define the “main()” method.

Create “JFrame” object.

Set the frame size.

Set the frame title.

Set the operation on the frame.

Create “CarComponent” object.

Create two “Car” objects.

Call the method “add()” to add the first car component to the list.

Call the method “add()” to add the second car component to the list.

Add the component into the frame.

Make the frame visible.

Create a class “TimerListener”,

Define the method “actionPerformed()”,

Call the method “translate()” with “(1,0)” as arguments.

Call the method “translate()” with “(-1,0)” as arguments.

Call the method “repaint()”.

Create an object for “TimerListener”,

Set the milliseconds between the timer ticks.

Create the object for “Timer”.

Call the method “start()”.

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