toggle dark mode.java

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

public class DarkModeExample extends JFrame {
    private boolean darkMode = false;
    private JPanel panel;
    private JButton toggleButton;
    private JLabel label;

    public DarkModeExample() {
        setTitle("Dark Mode Example");
        setSize(400, 200);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setLocationRelativeTo(null);

        panel = new JPanel();
        panel.setLayout(new BorderLayout());

        label = new JLabel("Click the button to toggle Dark Mode", SwingConstants.CENTER);
        label.setFont(new Font("Arial", Font.BOLD, 16));

        toggleButton = new JButton("Enable Dark Mode");
        toggleButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                darkMode = !darkMode;
                updateMode();
            }
        });

        panel.add(label, BorderLayout.CENTER);
        panel.add(toggleButton, BorderLayout.SOUTH);
        add(panel);
    }

    private void updateMode() {
        if (darkMode) {
            panel.setBackground(Color.DARK_GRAY);
            label.setForeground(Color.WHITE);
            toggleButton.setText("Disable Dark Mode");
        } else {
            panel.setBackground(Color.WHITE);
            label.setForeground(Color.BLACK);
            toggleButton.setText("Enable Dark Mode");
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new DarkModeExample().setVisible(true));
    }
}