My very simple 33 line applet can't run, giving the error "Start: Applet not initiated"
This is the Console output from Eclipse Quote:
java.lang.NullPointerException
at java.applet.Applet.getCodeBase(Applet.java:146)
at SoundApplet.<init>(SoundApplet.java:11)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:721)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:650)
at sun.applet.AppletPanel.run(AppletPanel.java:324)
at java.lang.Thread.run(Thread.java:595)
And this is the applet, too simple to really have errors, but I haven't done Java in so long I wouldn't know.
code: |
import java.applet.AudioClip;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class SoundApplet extends JApplet implements ActionListener {
JButton buttonStart = new JButton("Start");
JButton buttonStop = new JButton("Stop");
AudioClip clip = getAudioClip(getCodeBase(), "spacemusic.au");
public void init() {
buttonStart.setSize(100, 20);
buttonStop.setSize(100, 20);
buttonStop.addActionListener(this);
buttonStart.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == buttonStart) {
clip.play();
} else if (e.getSource() == buttonStop) {
clip.stop();
}
}
public void paint(Graphics g) {
getContentPane().add(buttonStart);
getContentPane().add(buttonStop);
}
}
|
1st post question = How do you add syntax colouring in code tags?