driver.java

Java程序设计(美) David D. Riley著 机械工业出版社 书籍配套 代码

import java.awt.Color;
import javax.swing.JFrame;

/**	Author: David D. Riley
 *		Date: Jan, 2005
 *   Example of clipping and overlapping
 *   Rectangles and Ovals (Figure 3.20)
 */
public class Driver  {
    private JFrame  window;
    private Rectangle bigSquare, smallSquare;
    private Oval blackOval, whiteOval;
    
    public Driver()  {
        window = new JFrame( "the window" );	
        window.setBounds(50, 50, 300, 200);
        window.setLayout(null);
        window.setBackground(Color.white);
        window.setVisible(true);	
        
        blackOval = new Oval(100, 100, 100, 40);
        window.add(blackOval, 0);
        bigSquare = new Rectangle(50, 20, 100, 100);
        bigSquare.setBackground(Color.lightGray);
        blackOval.add(bigSquare, 0);

        smallSquare = new Rectangle(200, 30, 40, 40);
        smallSquare.setBackground(Color.gray);
        window.add(smallSquare, 0);
        whiteOval = new Oval(210, 50, 20, 15);
        whiteOval.setBackground(Color.white);
        window.add(whiteOval, 0);
        window.repaint();
    }
}