Can I create a JAR that is an Applet and Desktop app at the same time?

Question

Hi mates.
Can I create a JAR that is an Applet and Desktop app at the same time?
Thanks.

Answer 1

Ricardo_Ruiz_Lopez wrote:
..I have one problem, I want a JMenuBar but I can't add it inside a jPanel.
Any idea?
SSCCE
It can be compiled/run as an applet or application something like this (e.g. for a Win command prompt).
C:\Users\Andrew\Hybrid> javac Hybrid.java
C:\Users\Andrew\Hybrid> java Hybrid
C:\Users\Andrew\Hybrid> appletviewer Hybrid.java
C:\Users\Andrew\Hybrid> // YES the previous line requires a '.java'  suffix - trust me.  ;-)Code
// <applet code='Hybrid' width='600' height='400'></applet>
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
public class Hybrid extends JApplet {
    public void init() {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                GUI gui = new GUI();
                getContentPane().add( gui.getMainPanel() );
                setJMenuBar( gui.getMenuBar(false) );
                validate();
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                JFrame f = new JFrame("Test Hybrid");
                f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
                GUI gui = new GUI();
                f.setContentPane(gui.getMainPanel());
                f.setJMenuBar(gui.getMenuBar(true));
                f.pack();
                f.setLocationRelativeTo(null);
                f.setVisible(true);
class GUI {
    private JPanel mainGui = null;
    private JMenuBar menuBar = null;
    public JPanel getMainPanel(){
        if (mainGui==null) {
            mainGui = new JPanel( new BorderLayout(3,3) );
            mainGui.setBorder( new EmptyBorder(5,5,5,5) );
            JToolBar tb = new JToolBar();
            for (int ii=1; ii<6; ii++) {
                tb.add( new JButton( "Btn " + ii) );
                if (ii%2==0) {
                    tb.addSeparator();
            mainGui.add(tb, BorderLayout.NORTH);
            mainGui.add( new JSplitPane(
                JSplitPane.HORIZONTAL_SPLIT,
                new JScrollPane(new JTree()),
                new JTextArea(20,20)
                ), BorderLayout.CENTER );
            mainGui.add(new JLabel("Main user interface.."), BorderLayout.SOUTH);
        return mainGui;
    public JMenuBar getMenuBar(boolean isFloating) {
        if (menuBar == null) {
            menuBar = new JMenuBar();
            if (isFloating) {
                JMenu fileMenu = new JMenu("File");
                fileMenu.add( new JMenuItem("Exit") );
                menuBar.add( fileMenu );
            JMenu helpMenu = new JMenu("Help");
            helpMenu.add( new JMenuItem("About") );
            helpMenu.add( new JMenuItem("Help") );
            menuBar.add( helpMenu );
        return menuBar;
The code is not intended to be well designed. It is just written to be brief and demonstrate a few points.
Edit 1:
Added some access keywords in a passing gesture that the sample aimed at encapsulation.
Edited by: AndrewThompson64 on Sep 2, 2010 1:34 PM