Chapter 11, Problem 3PP

Program Plan Intro

Animation of a car

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 “Car” object.
  • Define the constructor to initialize the object.
  • Define the method “paintComponent ()”,
    • Call the super class method.
    • Create “Graphics2D” object.
    • Call the method “draw()”.
  • Define the method “moveCarBy()”,
    • Call the method “translate()”.
    • Call the method “repaint()”.
• 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.
    • Add the component into the frame.
    • Make the frame visible.
    • Create a class “TimerListener”,
      • Define the method “actionPerformed()”,
        • Call the method “moveCarBy()”
        • 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()”.