Chapter 3.8, Problem 29SC

Explanation of Solution

Drawings in java:

• When a user has to develop a drawing that contains multiple shapes, or parts that are made of multiple shapes, it is advised to create separate classes for each purpose or part.
• In the given scenario,
  • The “Car” class contains the code that are used to draw a single car.
  • The next class “CarComponent” is contains the code used to display the drawing.
  • The last class “CarViewer” displays a frame that contains the “CarComponent”.
• Given program:

//import the required packages

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.geom.Ellipse2D;

import java.awt.geom.Line2D;

import java.awt.geom.Point2D;

//define a class named "car"

public class Car

{

    //declare the required variables

    private int xLeft;

    private int yTop;

    //define a method to assign the values

    public Car(int x, int y)

    {

        //define the variables to store the values of x-

coordinate and y-coordinate

        xLeft = x;

        yTop = y;

    }

    //define the method to draw

    public void draw(Graphics2D g2)

    {

        //create required objects

        Rectangle body = new Rectangle(xLeft, yTop + 10,

  60, 10);

        Ellipse2D.Double frontTire = new

  Ellipse2D.Double(xLeft + 10, yTop + 20, 10, 10);

        Ellipse2D.Double rearTire = new

  Ellipse2D.Double(xLeft + 40, yTop + 20, 10, 10);

        // The bottom of the front windshield

        Point2D.Double r1 = new Point2D.Double(xLeft +

  10, yTop + 10);

        // The front of the roof

        Point2D...