Question

I’m facing some trouble to run an applet using appletviewer command line in ms-dos.
this is my project tree :

Project
|___classes
|       |___org 
|            |___test
|                  |___Test.class
|
|__src
    |___org       
         |___test
               |___Test.java

Here is Test.java source file :

package org.test;

import java.applet.Applet;

/*<applet code="org.test.Test" width="200" height="100" 
codebase="..\..\..\classes\org\test"></applet>*/

public class Test extends Applet{

    public void init(){

    }

    public void start(){

    }

    public void stop(){

    }

    public void destroy(){

    }

}

I read in an article that the appletviewer only need a file where there is an applet tag inside it, so that it will parse that file to retrieve the tag. That is what I did with the commented line in the source file above.

The source file compiles without any error. Then I try to run it. So I go into the folder where my source file is, and I try this :

prompt\Project\src\org\test>appletviewer Test.java

Here is the error that occurs :

java.lang.ClassNotFoundException: org.test.Test
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:211)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:144)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:662)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:785)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
at sun.applet.AppletPanel.run(AppletPanel.java:368)
at java.lang.Thread.run(Thread.java:662)

I think that the error comes from the first line of my java source file, because when I remove it, all works fine. But I just don’t know why…
Could someone explain me, please?

Answer 1

I believe it should be

codebase="../../../classes"

And you should be trying to run the .class file, not the .java file, in which case the current directory should be classes when you try to run it.