javax.swing.plaf

---

1. Setting the Look and Feel of a JFrame:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelExample {
    public static void main(String[] args) {
        try {
            // Set the look and feel to Metal
            UIManager.setLookAndFeel(new MetalLookAndFeel());
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

2. Changing the Look and Feel Dynamically:

import javax.swing.*;
import javax.swing.plaf.metal.*;
import javax.swing.plaf.nimbus.*;
import java.awt.event.*;

public class DynamicLookAndFeelExample {
    public static void main(String[] args) {
        // Create a new JFrame with a title and close button
        JFrame frame = new JFrame("Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // Create a JComboBox to select the look and feel
        JComboBox<LookAndFeel> lookAndFeelComboBox = new JComboBox<>();
        lookAndFeelComboBox.addItem(new MetalLookAndFeel());
        lookAndFeelComboBox.addItem(new NimbusLookAndFeel());
        
        // Add the combo box to the frame
        frame.add(lookAndFeelComboBox, BorderLayout.NORTH);
        
        // Add an ActionListener to the combo box to change the look and feel
        lookAndFeelComboBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    // Get the selected look and feel
                    LookAndFeel lookAndFeel = (LookAndFeel) lookAndFeelComboBox.getSelectedItem();
                    
                    // Set the look and feel
                    UIManager.setLookAndFeel(lookAndFeel);
                    
                    // Update the frame to use the new look and feel
                    SwingUtilities.updateComponentTreeUI(frame);
                } catch (UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }
            }
        });
        
        // Make the frame visible
        frame.pack();
        frame.setVisible(true);
    }
}

3. Creating a Custom Look and Feel:

import javax.swing.*;
import javax.swing.plaf.basic.*;

public class CustomLookAndFeel extends BasicLookAndFeel {
    // Override the methods to create a custom look and feel
    
    @Override
    public void initialize() {
        // Initialize the look and feel
    }
    
    @Override
    public void uninitialize() {
        // Uninitialize the look and feel
    }
    
    @Override
    public String getName() {
        // Return the name of the look and feel
        return "CustomLookAndFeel";
    }
    
    @Override
    public String getID() {
        // Return the ID of the look and feel
        return "CustomLookAndFeel";
    }
    
    @Override
    public String getDescription() {
        // Return the description of the look and feel
        return "A custom look and feel";
    }
    
    @Override
    public boolean isNativeLookAndFeel() {
        // Return whether the look and feel is native
        return false;
    }
    
    @Override
    public boolean isSupportedLookAndFeel() {
        // Return whether the look and feel is supported
        return true;
    }
}

4. Setting the Default Look and Feel:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class DefaultLookAndFeelExample {
    public static void main(String[] args) {
        try {
            // Set the default look and feel to Metal
            UIManager.setLookAndFeel(new MetalLookAndFeel());
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

5. Getting the Current Look and Feel:

import javax.swing.*;

public class CurrentLookAndFeelExample {
    public static void main(String[] args) {
        // Get the current look and feel
        LookAndFeel lookAndFeel = UIManager.getLookAndFeel();
        
        // Print the name of the look and feel
        System.out.println(lookAndFeel.getName());
    }
}

6. Creating a Look and Feel Delegate:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelDelegateExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel delegate
            LookAndFeelDelegate lookAndFeelDelegate = new MetalLookAndFeelDelegate();
            
            // Set the look and feel delegate
            UIManager.setLookAndFeel(lookAndFeelDelegate);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

7. Creating a Look and Feel Info:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelInfoExample {
    public static void main(String[] args) {
        // Create a new look and feel info
        LookAndFeelInfo lookAndFeelInfo = new LookAndFeelInfo("Metal", MetalLookAndFeel.class.getName(), "A metal look and feel", "Metal");
        
        // Get the name of the look and feel info
        System.out.println(lookAndFeelInfo.getName());
        
        // Get the class name of the look and feel info
        System.out.println(lookAndFeelInfo.getClassName());
        
        // Get the description of the look and feel info
        System.out.println(lookAndFeelInfo.getDescription());
    }
}

8. Creating a Look and Feel Plugin:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelPluginExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel plugin
            LookAndFeelPlugin lookAndFeelPlugin = new MetalLookAndFeelPlugin();
            
            // Register the look and feel plugin
            UIManager.installLookAndFeel(lookAndFeelPlugin);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

9. Creating a Look and Feel Provider:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelProviderExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel provider
            LookAndFeelProvider lookAndFeelProvider = new MetalLookAndFeelProvider();
            
            // Register the look and feel provider
            UIManager.installLookAndFeel(lookAndFeelProvider);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

10. Creating a Look and Feel Proxy:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelProxyExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel proxy
            LookAndFeelProxy lookAndFeelProxy = new MetalLookAndFeelProxy();
            
            // Set the look and feel proxy
            UIManager.setLookAndFeel(lookAndFeelProxy);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

11. Creating a Look and Feel UI Resource:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelUIResourceExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel UI resource
            LookAndFeelUIResource lookAndFeelUIResource = new MetalLookAndFeelUIResource();
            
            // Set the look and feel UI resource
            UIManager.setLookAndFeel(lookAndFeelUIResource);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

12. Creating a Look and Feel Wrapper:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class LookAndFeelWrapperExample {
    public static void main(String[] args) {
        try {
            // Create a new look and feel wrapper
            LookAndFeelWrapper lookAndFeelWrapper = new MetalLookAndFeelWrapper();
            
            // Set the look and feel wrapper
            UIManager.setLookAndFeel(lookAndFeelWrapper);
            
            // Create a new JFrame with a title
            JFrame frame = new JFrame("Example");
            
            // Make the frame visible
            frame.setVisible(true);
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
    }
}

13. Creating a MetalComboBoxUI:

import javax.swing.*;
import javax.swing.plaf.metal.*;

public class MetalComboBoxUIExample {
    public static void main(String[] args) {
        // Create a new JFrame with a title
        JFrame frame = new JFrame("Example");
        
        // Create a new JComboBox