test.java

《Java2图形设计卷II：Swing》配套光盘源码

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Test extends JApplet {
	Button b1, b2, b3, b4;
	JButton jb1, jb2, jb3;

	public void init() {
		Container contentPane = getContentPane();
		Panel p = new BorderedPanel();

		// set layout managers for content pane and panel
		// to null so their components can be explicitly
		// positioned and sized
		contentPane.setLayout(null);
		p.setLayout(null);

		// create heavyweight AWT buttons
		b1 = new Button("Heavyweight Button #1");
		b2 = new Button("Heavyweight Button #2");
		b3 = new Button("Heavyweight Button #3");
		b4 = new Button("Heavyweight Button #4");

		// create lightweight Swing buttons
		jb1 = new JButton("Swing Button #1");
		jb2 = new JButton("Swing Button #2");
		jb3 = new JButton("Swing Button #3");

		// set bounds for heavyweights
		b1.setBounds(10, 10, 150, 25);
		b2.setBounds(110, 25, 150, 25);
		b3.setBounds(210, 40, 150, 25);
		b4.setBounds(310, 55, 150, 25);

		// set bounds for lightweights
		jb1.setBounds(5, 5, 150, 65);
		jb2.setBounds(20, 45, 150, 65);
		jb3.setBounds(35, 85, 150, 65);

		// set bounds for panel and add lightweights
		p.setBounds(85, 15, 195, 155);
		p.add(jb1);
		p.add(jb2);
		p.add(jb3);

		// add AWT buttons and panel to content pane
		contentPane.add(b1);
		contentPane.add(b2);
		contentPane.add(p);
		contentPane.add(b3);
		contentPane.add(b4);
	}
}
class BorderedPanel extends Panel {
	public void paint(Graphics g) {
		Dimension size = getSize();

		g.setColor(Color.black);
		g.drawRect(0,0,size.width-1,size.height-1);
		super.paint(g);  // paint lightweights
	}
}