swingtestlookfeel.java

samplecode 111 for J2SE project

package soe;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class SwingTestLookFeel extends JFrame {
/**
* Change look and feel dinamically
*/
private static final long serialVersionUID = 1L;
JButton btnHello;
JButton btnLookFeel;
JLabel label;
public SwingTestLookFeel() {
super("SwingEventTest");
setSize(500, 200);
getContentPane().setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.HORIZONTAL;
// Create button to display hello
btnHello = new JButton("name of L&F is ");
getContentPane().add(btnHello);
// Register action listener using anonymous class
btnHello.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
label.setText(UIManager.getLookAndFeel().toString());
}
});
// Change look and feel to motif
btnLookFeel = new JButton("Change to motif");
getContentPane().add(btnLookFeel);
// Register action listener using anonymous class
btnLookFeel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
changeLookFeel();
}
});
// Create label
label = new JLabel("");
c.gridwidth = 2;
c.gridx = 0;
c.gridy = 1;
label.setHorizontalAlignment(JLabel.CENTER);
getContentPane().add(label, c);
// Window Close event
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setVisible(true);
}
// change the look and feel to Motif
public void changeLookFeel() {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
} catch (ClassNotFoundException e) {
	e.printStackTrace();
	} catch (InstantiationException e) {
	e.printStackTrace();
	} catch (IllegalAccessException e) {
	e.printStackTrace();
	} catch (UnsupportedLookAndFeelException e) {
	e.printStackTrace();
	}
	SwingUtilities.updateComponentTreeUI(this);
	}
	public static void main(String[] args) {
	new SwingTestLookFeel();
	}
	}