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Message:

JApplet and java.lang.instantiationException

Posted by Peter Proud-Madruga on March 28, 2001 at 2:09 PM

I have searched high and low for the answer to this question. I have been on many other web sites where people are searching for the answer to this same question, but no one replies with an answer. I am quite frustrated, and yet I believe the answer is probably a simple one.

I have designed a very simple JApplet. It is a single button. It works fine in Appletviewer, but on IE 5.0 or Netscape 4.6, I get the following error message on the Java Console:

java.lang.InstantiationException: WBC16Applet
at com/ms/applet/BrowserAppletFrame.newInstance
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.run
at java/lang/Thread.run

Here is the very simple code:

import javax.swing.*;

public class WBC16Applet extends JApplet
{
private JButton button = new JButton("Testing");
public WBC16Applet()
{
super();
}

public void init()
{
getContentPane().add(button);
}
}

As you can see, I have a constructor. My CLASSPATH reads:
.;c:\progra~1\javasoft\jre\1.3.0_02\lib\rt.jar

I want to mention that supposedly, you don't need a classpath defined in the environment variables for java 1.2

My path statement includes the following:

c:\jdk1.3.0_02\bin;c:\progra~1\javasoft\jre\1.3.0_02\bin

Any help would be WONDERFUL.

Thanks in advance,

Peter Proud-Madruga

• Get rid of old habits of using APPLET tags KIshori Sharan March 29, 2001 at 10:52 AM (0)