JFrame components printing

hi sir
thanks a lot for your reply...
but i go through the link that you have specified
http://www.roseindia.net/java/example/java/swing/Print.shtml

and downloaded the codes and compiled it got errors
and i removed that error and i executed program
when i press print button it displays these
errors

at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

so what can i do to avoid and function it properly

and i have altered the PrintExample content like this

public class PrintExample extends JFrame implements ActionListener {
public static void main(String[] args) {
new PrintExample();
}

public PrintExample() {
super("Printing Swing Components");
WindowShow.setNativeLookAndFeel();

Container content = getContentPane();
JButton printButton = new JButton("Print");
printButton.addActionListener(this);
JPanel buttonPanel = new JPanel();
buttonPanel.setBackground(Color.white);
buttonPanel.add(printButton);
content.add(buttonPanel, BorderLayout.SOUTH);
DrawingPane drawingPanel = new DrawingPane();
content.add(drawingPanel, BorderLayout.CENTER);
setSize(520,500);
setVisible(true);
}

public void actionPerformed(ActionEvent event) {
PrintableDocument.printComponent(this);
}

class DrawingPane extends JPanel {
private int fontSize = 15;
private String message = "Name";
private int messageWidth;

public DrawingPane() {
setBackground(Color.white);
Font font = new Font("Serif", Font.PLAIN, fontSize);
setFont(font);
FontMetrics metrics = getFontMetrics(font);
messageWidth = metrics.stringWidth(message);
int width = messageWidth*5/3;
int height = fontSize*3;
setPreferredSize(new Dimension(width, height));

}

public void paintComponent(Graphics g) {

super.paintComponent(g);
Graphics2D graph = (Graphics2D)g;
graph.drawRoundRect(10, 10,480,380,10,10);
graph.drawLine(10,60 ,490,60);
graph.drawLine(320, 60, 320, 390);
graph.drawLine(10, 345, 490, 345);
graph.setPaint(Color.black);
graph.drawString("NAME :", 15,30);
graph.drawString("COURSE :",15 ,55 );
graph.drawString("CLASS :",270, 55);
graph.drawString("Amount :", 15,110);
graph.drawString("Balance :", 15,150);
graph.drawString("Total :", 15,340);
graph.drawString("Recieved :", 15,380);




}
}
}

does it print the rectangle lines and strings what i mentioned above sir
and also please go through the print button error sir please i need it for my completion of my little project thanking you a lot sir