How to Make Applets in Java?

[NGV BalaKrishna]

Hi friends,
I am new to the applets. Before that I have done some basic programming in Java. But I don't know anything about the Applets.!! So i thought that there will be some guys interested in helping me.!! So please tell me how to Make Applets in Java? If you would provide the coding, that would be much better for me to understand.!!

[Allan.d]

You will have to follow the steps for testing the applet which are given as below :

1. Open NotePad and copy and paste the code in the code section.
2. Click file, and then click save as, and save it in your java folder but name the code "test.java" .
3. Exit the window. After exiting, click start, run, then type in cmd in the box and press OK.
4. Type cd C:\jdk6\bin and press enter.
5. Type javac then C:\java\test.java and press enter.
6. Now copy and paste the launcher into NotePad and Click file, and then click save as, and save it in your java folder but name the launcher. "test.htm"
7. Now go to the java folder you made and launch the test.htm file.

[CodGuru]

You should be knowing that the JApplet is a class that enables applets to use Swing components. JApplet is a subclass of java.applet.Applet. The information provided in that trail applies to Swing applets. Any applet that contains Swing components must be implemented with a subclass of JApplet. Because JApplet is a top-level Swing container, each Swing applet has a root pane. You can add menu bar using the applet.

[Praetor]

There are some main methods in init, start, stop, and destroy. Below is an example for that :

public void init() {
    try {
        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                createGUI();
            }
        });
    } catch (Exception e) {
        System.err.println("createGUI didn't successfully complete");
    }
}

private void createGUI() {
    JLabel label = new JLabel(
                       "You are successfully running a Swing applet!");
    label.setHorizontalAlignment(JLabel.CENTER);
    label.setBorder(BorderFactory.createMatteBorder(1,1,1,1,Color.black));
    getContentPane().add(label, BorderLayout.CENTER);
}

[kyosang]

I have given you another example of the applet. Just have a look at the example :

public void init() {
    ...
    imgs = new ImageIcon[nimgs];
    (new SwingWorker() {
        public ImageIcon[] doInBackground() {
            //Images are numbered 1 to nimgs,
            //but fill array from 0 to nimgs-1.
            for (int i = 0; i < nimgs; i++) {
                imgs[i] = loadImage(i+1);
            }
            return imgs;
        }
        ...
    }).execute();

}