在JPanel中实例化JApplet实例？

Question

Right so my team mate has created a JApplet which contains a countdown

I have to take his JApplet and fit it inside a JPanel/JTab (Which its inside a JFrame ), something from the NetBeans Palette.

Simply speaking i have a page with many components and I just want the countdown at the top right.

Using the GUI builder in netbeans, i created a JPanel and an event. In the event handler, i put:

private void jPanel1ComponentShown(java.awt.event.ComponentEvent evt) {                                       
    // TODO: Countdown

    Package.Packagename.Countdown.init();
}                                      

The error message i get is:

non-static method init() cannot be referenced from a static context.

The Applet works fine on its own, i just cant put it in here.

Answer 1

"I have to take his JApplet and fit it inside a JPanel"

JApplet is a top level container and should not be put inside of a JPanel . You can however take the JApplets component contents and put them inside the JPanel

-OR-

Instead of trying to use your friend's applet code, just create your own. Implementing a countdown is really not that difficult. Just hand code it.

1. Drag and drop a label to the corner of your frame ( jLabel )

2. Then use something like this

    public class MyFrame extends javax.swing.JFrame { int time = 100; public MyFrame () { initComponents(); jLabel.setText(String.valueOf(count)); javax.swing.Timer timer = new javax.swingTimer(1000, new java.awt.event.ActionListener(){ public void actionPerformed(java.awt.event.ActionEvent e) { if (count == 0) { ((javax.swing.Timer)e.getSource()).stop(); } else { count--; jLabel.setText(String.valueOf(count)); } } }); timer.start(); } } 

---

If you want, just make a Timer a class member that you can call from another actionPerformed to start() or stop() it

Answer 2

An Applet is a web component that has nothing to do inside a desktop app.

Create a widget (something wrapped in a JPanel or whatever) that you will both use in your applet and your desktop app.