Java Look and Feel
Java Swing Tutorial Explaining the Java look and feel. Java Swing api provides pluggable look and feel ( PL&F)
capability that allows swing gui widgets to change appearance based on the programmers customized look and feel setting.
Each Java runtime has a UIManager object that determines the look and feel of the Swing components. Below are some
example ode snippets to implement the java look and feel your java application.
UIManager.setLookAndFeel ("java.awt.swing.plaf.metal.MetalLookAndFeel" ) ; SwingUtilities.updateComponentTreeUI ( this ) ;
UIManager.setLookAndFeel ("java.awt.swing.plaf.windows.WindowsLookAndFeel" ) ; SwingUtilities.updateComponentTreeUI ( this ) ;
UIManager.setLookAndFeel ("java.awt.swing.plaf.motif.MotifLookAndFeel" ) ; SwingUtilities.updateComponentTreeUI ( this ) ;
Each platform has a system-default look and feel. This source code shows how to establish the system default look and feel.
UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName() );
SwingUtilities.updateComponentTreeUI( this ); |
Java look and feel Source Code
1. To determine the installed look and feel in your system
//Get Installed look and Feels
import javax.swing.UIManager;
public class InstalledLookandFeels {
public static void main(String args[]) {
UIManager.LookAndFeelInfo laf[] = UIManager
.getInstalledLookAndFeels();
for (int i = 0, n = laf.length; i < n; i++) {
System.out.print("LAF Name: " + laf[i].getName() + "\t");
System.out.println(" LAF Class name: "
+ laf[i].getClassName());
}
System.exit(0);
}
}
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Output
LAF Name: Metal LAF Class name: javax.swing.plaf.metal.MetalLookAndFeel
LAF Name: CDE/Motif LAF Class name: com.sun.java.swing.plaf.motif.MotifLookAndFeel
LAF Name: Windows LAF Class name: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Download
Installed Look and Feels Source Code
2. To change the look and feel in your gui by clicking on buttons
import java.awt.Container;
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.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class LookAndFeel1 extends JPanel implements ActionListener {
private JButton jbmMetal = new JButton("Metal");
private JButton jbnMotif = new JButton("Motif");
private JButton jbnWindows = new JButton("Windows");
public LookAndFeel1() {
add(jbmMetal);
add(jbnMotif);
add(jbnWindows);
jbmMetal.addActionListener(this);
jbnMotif.addActionListener(this);
jbnWindows.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
String laf = "";
if (source == jbmMetal)
laf = "javax.swing.plaf.metal.MetalLookAndFeel";
else if (source == jbnMotif)
laf = "com.sun.java.swing.plaf.motif.MotifLookAndFeel";
else if (source == jbnWindows)
laf = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
try {
UIManager.setLookAndFeel(laf);
SwingUtilities.updateComponentTreeUI(this);
} catch (Exception excep) {
}
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setTitle("Look and Feel Test");
frame.setSize(300, 200);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
Container contentPane = frame.getContentPane();
contentPane.add(new LookAndFeel1());
frame.setVisible(true);
}
}
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Output
Metal LAF
Motif LAF
Windows LAF
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Look and Feel Source Code2
3. To change the look and feel in your gui by selection the Radio Buttons.
Download
Look and Feel Source Code3
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