Encoder_GUI.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class Encoder_GUI{

	private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("Duck Encoder");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        JLabel emptyLabel = new JLabel("");
        emptyLabel.setPreferredSize(new Dimension(400, 400));
        frame.getContentPane().add(emptyLabel, BorderLayout.CENTER);
 
        //Display the window.
        frame.pack();
        frame.setVisible(true);
        
        JMenuBar menubar = new JMenuBar();
        JMenu file = new JMenu("File");
        JMenuItem eMenuItem = new JMenuItem("Exit");
        eMenuItem.setMnemonic(KeyEvent.VK_C);
        eMenuItem.setToolTipText("Exit application");
        eMenuItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                System.exit(0);
            }

        });

        file.add(eMenuItem);

        menubar.add(file);

        setJMenuBar(menubar);

        setTitle("Simple menu");
        setSize(300, 200);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
    }
 
    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}