import java.awt.Rectangle;
import javax.swing.JFrame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JComponent;
import java.awt.Color;


/**
     This class exercises the Rectangle class of
       the Java API.  It stores and displays a collection
       of exactly 4 rectangles.
 */


public class RectangleTester extends JComponent
 {
      
      // Stored rectangle objects to be displayed      

      private Rectangle r1, r2, r3, r4;
 
/**
    A constructor that takes the 4 rectangles to be displayed
    @param rect1 the first rectangle (to be displayed in red)
    @param rect2 the first rectangle (to be displayed in orange)
    @param rect3 the first rectangle (to be displayed in green)
    @param rect4 the first rectangle (to be displayed in blue)
 */

      public RectangleTester(Rectangle rect1, Rectangle rect2,
                             Rectangle rect3, Rectangle rect4) {
        r1 = rect1;
        r2 = rect2;
        r3 = rect3;
        r4 = rect4;                                            }

                             
/**
     A test method for the RectangleTester class
 */

      public void test()                                           { 
       JFrame frame = new JFrame();
       frame.setSize(500, 400);
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       frame.add(this);
       frame.setVisible(true);                                   }

 
/**
     Paints the Rectangles r1 through r4 onto
       a given Graphics object
     @param g the Graphics object         
 */

     public void paintComponent(Graphics g)            {

         // RecoverGraphics2D
       Graphics2D g2 = (Graphics2D) g;

       g2.setColor(Color.RED);
       g2.fill(r1);
       g2.setColor(Color.ORANGE);
       g2.fill(r2);
       g2.setColor(Color.GREEN);
       g2.fill(r3);
       g2.setColor(Color.BLUE);
       g2.fill(r4);                                    }

   

/**
     This <code>main</code> method invokes a test method 
       for the RectangleTester class
 */
    
    public static void main(String args[])                     {
      Rectangle redRectangle = 
        /* a new Rectangle of width 80 and height 60 
         whose top-left corner is at (60,20) */ 
      Rectangle orangeRectangle = 
        redRectangle;
      Rectangle greenRectangle = 
        /* a new Rectangle of width 70 and height 50 
         whose top-left corner is at (240,40) */ 
      /* translate redRectangle 90 units to the right
           and 20 units down */
      Rectangle blueRectangle = 
        /* a new Rectangle with the same width, height, and
             position as the CURRENT value of redRectangle.
           You should not have to do any arithmetic         */
      /* translate blueRectangle 60 units to the left and
          70 units down */

      RectangleTester tester1 = 
        new RectangleTester(redRectangle, orangeRectangle,
                            greenRectangle, blueRectangle);
      tester1.test();

      orangeRectangle = 
      /* a new rectangle with the same width, height, and
           position as the ORIGINAL value of redRectangle */   

      RectangleTester tester2 = 
        new RectangleTester(redRectangle, orangeRectangle,
                            greenRectangle, blueRectangle);

      tester2.test();
                                                              }


}