Tutorial Error

Question

Hi all.
Got this code in a tutorial.
Any help would be grateful.
The Code:
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.*;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.ColorCube;
import javax.media.j3d.*;
import javax.vecmath.*;
// HelloJava3Da renders a single, rotating cube.
public class HelloJava3Da extends Applet {
public HelloJava3Da() {
setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);
add("Center", canvas3D);
BranchGroup scene = createSceneGraph();
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
     // This will move the ViewPlatform back a bit so the
     // objects in the scene can be viewed.
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
} // end of HelloJava3Da (constructor)
public BranchGroup createSceneGraph() {
     // Create the root of the branch graph
     BranchGroup objRoot = new BranchGroup();
     objRoot.addChild(new ColorCube(0.4));
     return objRoot;
} // end of CreateSceneGraph method of HelloJava3Da
// The following allows this to be run as an application
// as well as an applet
public static void main(String[] args) {
     Frame frame = new MainFrame(new HelloJava3Da(), 256, 256);
} // end of main (method of HelloJava3Da)
} // end of class HelloJava3Da
The Errors:
All the errors I'm getting are saying "cannot resolve symbol"
These errors seem to stem from the previous errors displayed:
"package com.sun.j3d.utils.universe does not exist"
Any ideas?

Answer 1

You know, i found package com.sun.3d.util.universe.*
It came in jar source code when i installed java3d. This jar called:
java3d-utils-src.jar and it reside in my jdk 1.4 directory. I don't know where bytecodes though, but you don't need to include anything of 3d into your classpath. It should work if you installed everything properly. I remember that when i installed active-x it did not work. Then i installed open-g and never had any problems. Make sure you installed open-g (jre and sdk). I met posts about active-x not working before.
My tutorials are working perfectly and source is exactly as you posted it.