(Java Virtual Machine) Cannot Find Main Class. Program will exit!

I have seen this error message all over the place but no resolution. I am running Windows XP Pro. I am able to view sites with Javascript such as www.target.com and the dropdown menus work fine. However, when I am using my very very simple Javascript menus (from Project VII) The javascript works FINE on my home PC - but not on my work PC. My Java panel appears to be corrupted, when I try to open it, I just get a blank screen and it hangs. My Javascript is enable in all places.
I'm going crazy! Any help is greatly appreciated.

Java[u] is not JavaScript. Which product are you having trouble with? If it's JS, you need to ask the questions at a JS site, not here.
To run a java program, change the cmd prompt to the directory that contains the Java .class files and issue this command:
java -classpath . <name of the class without the extension>
IMPORTANT: include the period and surrounding spaces.

Similar Messages

Could not find main class program will exit error while installing Oracle Client 32 bit on windows 7 32 bit OS?

Hi Experts,
When I am installing Oracle client 32 bit software on Windows 7 32 bit I am getting error as "could not find main class program will exit"
I have tried installing latest Java software 7 also JDK 1.6.0_34 still I am getting the same problem below is my " oraparam.ini " details
[Oracle]
DISTRIBUTION=TRUE
SOURCE=../stage/products.xml
LICENSE_LOCATION=
BOOTSTRAP_COMPS="oracle.swd.oui:11.1.0.6.0,oracle.swd.oui.core:11.1.0.6.0,oracle.jdk:1.5.0.1.1"
JRE_SCRATCH_LOC=jdk/jre
JRE_MEMORY_OPTIONS=" -mx96m"
DEFAULT_HOME_LOCATION=product\11.1.0\client
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NO_BROWSE=/net
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BOOTSTRAP=TRUE
EXT_JLIB=../stage/ext/jlib
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JRE_VERSION=1.4.2
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Duplicates of the other two times you asked this question:
https://forums.oracle.com/thread/2559093
https://forums.oracle.com/thread/2558027
(and this time, your question does not appear to have anything to do with this particular forum space, either)
Duplicate is locked.
Do not EVER multi--post. That is extremely bad forum etiquette.

Jar file error: could not find main class. program will exit

I have created a jar file using following command
jar cfm MyProj.jar Manifest.txt richa\*.class
and I have included main class header in the Manifest.txt. The executable jar file is created but when I double click on it, it prompts an error Could not find the main class. program will exit.
Please help. Its urgent..
Thanks in advance

This simply state that jvm was unable to fine Main Class file.
I hope you have configured manifest file including your main file information and class path used by the project with proper package hierarchy,
as described in article
[https://java.sun.com/docs/books/tutorial/deployment/jar|https://java.sun.com/docs/books/tutorial/deployment/jar]
Edited by: Deepesh on Jul 13, 2008 4:58 AM

Error:-could not find the main class programe will exit(Java virtual mach)

Hi,
i changed the mainfest file for an executive jar file(judge.jar) using the command on dos :-"jar cvfm judge.jar c:\judge\MAINFEST.MF -C judge/ ." , but when i run this jar file again after making changes in mainfest file it is not working. an error encounter like "could not find the main class programe will exit how to solve"(Java virtual machine launcher).please suggest me how to solve this error.
Thanks
Ashwani Gupta

Hi,
mainfest file has a entry like "main -class: judge.repository.corpus"
please tell me the solution of this error i am doing internship in national university of singapore......and my project is related to data mining.I am using judge.jar when i extract this jar files i saw there was no main-class in manifest file so i change it and make it again jar file using dos command.please suggest me how i can reomove this error.
Thanks in advance.
Ashwani

Can't find main class - program will end

Dear forum readers,
Recently upgraded from Win2k pro to XP pro .. installation ran to conclusion w/ no fatal errors BUT upon booting new system I now receive an error message "Java Virtual Machine Launcher can't find main class, program will end" .. I am not aware that this error is causing any problems BUT it is annoying and I'd like to be able to fix the problem so I don't have to close the error message at each startup .. please help!
Thanks in advance, Larry

Try this
java -XbootClasspath/a -jar <<Prog name>>
I think you are trying in windows XP.
Also you need to modify if there are any other jars to be reference. For eg if a.jar is also required for this try as below
java -XbootClasspath/a:a.jar -jar <<Prog name>>

Error msg Could not find the main class.Program will exit. in jar execution

Hello,
I have created a jar so that I can used it in the webapp.
but when I click on it it says "Could not find the main class.Program will exit."
I searched a lot in the net and found that it has to do with the manifest file.
I even updated the manifest file using the command "jar umf main.txt filefolderupload.jar" with the class name mention along with the package heirarchy.
(pakage heirarchy in /,\ and .)
I am using JDK 1.5 . and have Updated JRE 1.6.
Also tried with extending the class with JApplet, but in vain.
Kindly help me in the above mention issue.
tia,
Sarwa

This post hints at a number of misunderstandings on your part, and raises a couple of important questions.
Note that this 'simple question' has a complicated answer. Given the complexity of it, it might pay to add Dukes to it, ..a lot of Dukes.
The important questions are.
1) Does this file/directory uploader need to provide the end-user with a file dialog in which they can choose a local directory to upload, or will a multi-file chooser do?
2) Does this uploader need to upload to foreign sites, or does it upload back to its own server?
Looking at this table I prepared to describe the [uploader/local file access|http://pscode.org/test/uploader/fileuploader.html] possibilities, if the answers to the questions are 'multi-file chooser will do' and 'home site only', the best option is a sandboxed app. launched using webstart (JNLP) - option 5. If either of those questions go the other way, option 6 (digitally signed with extended permissions) is needed.

Problem with message: Could not find the main class Program will exit

I don't get why this isn't working. Any help is appreciated.
//Code start
public class hello{
public hello(){
public static void main( String args[] ){
System.out.println("Hello");
//Code end
I compile it as so:
javac hello.javaIt compiles fine and I now have hello.class in my current directory, but when I type the following:
java helloI get this:
Exception in thread "main" java.lang.NoClassDefFoundError: hello
Caused by: java.lang.ClassNotFoundException: hello
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: hello. Program will exit.

mring001 wrote:
That worked. Thank you very much!Good. You should read [_Setting the class path_|http://java.sun.com/javase/6/docs/technotes/tools/windows/classpath.html] that tells you more about what the classpath is and how to set it.

The dreaded "could not find the Main Class, Program will exit", how?

Hello all,
I am trying to run my .jar file and I get this error message.
I want to mention I googled and searched for it, without success: There is so many different explanations!
I tried this:
Adding some lines in a manifest.fm file...
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 10.0-b19 (Sun Microsystems Inc.)
X-COMMENT: Main-Class will be added automatically by build
I have Netbeans 5.5.
Also I noticed my "build.xml" file is empty" and my "manifest.fm" nearly empty. I have also added "project, main class" in the options...
Here is my "build":
{code}<?xml version="1.0" encoding="UTF-8"?>



<project name="BetaCourseworkJava3d_Final" default="default" basedir=".">
<description>Builds, tests, and runs the project BetaCourseworkJava3d_Final.</description>
<import file="nbproject/build-impl.xml"/>

</project>
{code}
my Manifest:
{code}Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 10.0-b19 (Sun Microsystems Inc.)
X-COMMENT: Main-Class will be added automatically by build
{code}
And my whole code (although I have like 4 .JAVA files in my project):
{code}
package courseworkjava3d;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.swing.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import javax.media.j3d.PositionPathInterpolator;
import javax.media.j3d.Alpha;
import javax.media.j3d.BoundingSphere;
import com.sun.j3d.utils.applet.MainFrame;
import java.applet.Applet;
import java.awt.event.WindowAdapter;
import javax.swing.Timer;
import com.sun.j3d.utils.image.*;
public class Simple3D extends JFrame implements ActionListener, KeyListener
private TransformGroup objTransxx;
private Button go = new Button("Press to start the Bouncing Ball. Press A and S to move the ball Left and Right once it started!");
private Transform3D transxx = new Transform3D();
private float height=0.0f;
private float sign = 1.0f; // aller vers le haut ou vers le bas
private Timer timer;
private float xloc=-2.25f;
public Simple3D()
setSize(800, 800);
GraphicsConfiguration graphicsConfig = SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas = new Canvas3D(graphicsConfig);
getContentPane().add("Center", canvas);
BasicUniverse universe = new BasicUniverse(canvas, 8.0f);
// Rotate the view platform by PI/4 radians about X in the BasicUniverse
TransformGroup viewTransform = universe.getViewPlatformTransform();
Transform3D transform = new Transform3D();
transform.rotX(-Math.PI / 4.0);
Transform3D currentTransform = new Transform3D();
viewTransform.getTransform(currentTransform);
transform.mul(currentTransform);
viewTransform.setTransform(transform);
// Add something to display
BranchGroup scene = createCubeGraph();
universe.addBranchGraph(scene);
/* //ultra important! comment theses lines otherwise it bugs!
//Merde
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config); */
add("Center", canvas);
//i messed up te code, i replaced canvas c by "canvas" as i already had one!
canvas.addKeyListener(this);
timer = new Timer(75,this);
//timer.start();
Panel p =new Panel();
p.add(go);
add("North",p);
go.addActionListener(this);
go.addKeyListener(this);
// Cr�er une sc�ne simple et l�ajouetr � l�univers
//BranchGroup scene2 = createCubeGraph();
//SimpleUniverse u = new SimpleUniverse(c);
//u.getViewingPlatform().setNominalViewingTransform();
//u.addBranchGraph(scene2);
//End Merde
public BranchGroup createCubeGraph() {
BranchGroup Humanoid = new BranchGroup();
//Debut Ball REBOUND
// Create the root of the branch graph
//BranchGroup objRoot = new BranchGroup();
objTransxx = new TransformGroup();
objTransxx.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
Humanoid.addChild(objTransxx);
// Cr�er une forme simple et l�ajouter au graph de sc�ne
Sphere spherex = new Sphere(0.85f);
objTransxx = new TransformGroup();
objTransxx.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
Transform3D pos1 = new Transform3D();
pos1.setTranslation(new Vector3f(-2.0f,0.0f,-2.0f));
objTransxx.setTransform(pos1);
objTransxx.addChild(spherex);
Humanoid.addChild(objTransxx);
BoundingSphere boundsx =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
// I messed up the colors: I have applied 2 times some colorslights to the same BranchGroup
Color3f light1Colorx = new Color3f(1.0f, 1.0f, 1.0f);
Vector3f light1Directionx = new Vector3f(4.0f, -7.0f, -12.0f);
DirectionalLight light1x
= new DirectionalLight(light1Colorx, light1Directionx);
light1x.setInfluencingBounds(boundsx);
Humanoid.addChild(light1x);
// R�gler la lumi�re ambiante
Color3f ambientColorx = new Color3f(1.0f, 1.0f, 1.0f);
AmbientLight ambientLightNodex = new AmbientLight(ambientColorx);
ambientLightNodex.setInfluencingBounds(boundsx);
Humanoid.addChild(ambientLightNodex);
// END BallRebound
// Apparence BODY
// Configurer les couleurs
Color3f blackbody = new Color3f(0.0f, 0.0f, 0.0f);
Color3f whitebody = new Color3f(1.0f, 1.0f, 1.0f);
Color3f redbody = new Color3f(0.8f, .85f, .85f);
// Configurer la texture
//if I want it in Black and white i need to replace RGB by LUMINANCE
TextureLoader loaderbody = new TextureLoader("C:\\java3d\\body.jpg", "RGB", new Container());
Texture texturebody = loaderbody.getTexture();
texturebody.setBoundaryModeS(Texture.WRAP);
texturebody.setBoundaryModeT(Texture.WRAP);
texturebody.setBoundaryColor( new Color4f( 1.0f, 1.0f, 0.0f, 0.0f ) );
// Configurer les attributs de la texture
// Param�tres possibles : REPLACE, BLEND ou DECAL (ici, MODULATE)
TextureAttributes texAttrbody = new TextureAttributes();
texAttrbody.setTextureMode(TextureAttributes.MODULATE);
Appearance apbody = new Appearance();
apbody.setTexture(texturebody);
apbody.setTextureAttributes(texAttrbody);
//Configurer le mat�riau
apbody.setMaterial(new Material(redbody, blackbody, redbody, blackbody, 1.0f));
// Cr�er une sph�re pour y appliquer les textures
int primflagsbody = Primitive.GENERATE_NORMALS + Primitive.GENERATE_TEXTURE_COORDS;
// End Apparence BODY
// Apparence BODYHEAD
// Configurer les couleurs
Color3f blackbodyH = new Color3f(0.0f, 0.0f, 0.0f);
Color3f whitebodyH = new Color3f(1.0f, 1.0f, 1.0f);
Color3f redbodyH = new Color3f(0.8f, .85f, .85f);
// Configurer la texture
//if I want it in Black and white i need to replace RGB by LUMINANCE
TextureLoader loaderbodyH = new TextureLoader("C:\\java3d\\head.jpg", "RGB", new Container());
Texture texturebodyH = loaderbodyH.getTexture();
texturebodyH.setBoundaryModeS(Texture.WRAP);
texturebodyH.setBoundaryModeT(Texture.WRAP);
texturebodyH.setBoundaryColor( new Color4f( 1.0f, 1.0f, 0.0f, 0.0f ) );
// Configurer les attributs de la texture
// Param�tres possibles : REPLACE, BLEND ou DECAL (ici, MODULATE)
TextureAttributes texAttrbodyH = new TextureAttributes();
texAttrbodyH.setTextureMode(TextureAttributes.MODULATE);
Appearance apbodyH = new Appearance();
apbodyH.setTexture(texturebodyH);
apbodyH.setTextureAttributes(texAttrbodyH);
//Configurer le mat�riau
apbodyH.setMaterial(new Material(redbodyH, blackbodyH, redbodyH, blackbodyH, 1.0f));
// Cr�er une sph�re pour y appliquer les textures
int primflagsbodyH = Primitive.GENERATE_NORMALS + Primitive.GENERATE_TEXTURE_COORDS;
// End Apparence BODY HEAD
//for the trunk c le corps
TransformGroup fortheTrunk = new TransformGroup();
//will allow to modify object wgile executing
fortheTrunk.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
//alpha rotation time related
Alpha rotationAlpha2=new Alpha(-1,9000);
//behviour for our rotation
RotationInterpolator rotator2= new RotationInterpolator(rotationAlpha2,fortheTrunk);
// area where rotation will be
BoundingSphere bounds2=new BoundingSphere();
rotator2.setSchedulingBounds(bounds2);
fortheTrunk.addChild(rotator2);
//end of rtotation
Alpha transAlphahuman=new Alpha(-1,600);
//transform 3d trans for the interpolatipon HUMANOID
Transform3D transhumanoid=new Transform3D();
//matrix for 2positions
Point3f[] cheminhuman=new Point3f[3];
cheminhuman[0]=new Point3f(0.8f,0.0f,0.0f);
cheminhuman[1]=new Point3f(-0.8f,0.0f,0.0f);
cheminhuman[2]=new Point3f(0.8f,0.0f,0.0f);
//matrix of floats to make the dots match with timeline
float[] timePositionhuman={0.0f,0.50f,1.0f};
PositionPathInterpolator interpolhuman=new PositionPathInterpolator(transAlphahuman,fortheTrunk,transhumanoid,timePositionhuman,cheminhuman);
BoundingSphere bounds4=new BoundingSphere();
interpolhuman.setSchedulingBounds(bounds4);
fortheTrunk.addChild(interpolhuman);
//add the trunk to the branchgroup
Humanoid.addChild(fortheTrunk);
TransformGroup zeTrunk = new TransformGroup();
zeTrunk.addChild(new com.sun.j3d.utils.geometry.Box(.55f,.80f,.50f,
primflagsbody,apbody));
//t3D for the head= bouge up
Transform3D T3DHead = new Transform3D();
T3DHead.set(new Vector3f(0f,1.1f,0f));
//create a tranform group for this t3Dhead
TransformGroup fortheHead = new TransformGroup();
fortheHead.setTransform(T3DHead);
//add the box head
//fortheHead.addChild(new com.sun.j3d.utils.geometry.Box(.20f,.20f,.10f, primflagsbody,apbody));
fortheHead.addChild(new com.sun.j3d.utils.geometry.Sphere(0.35f,primflagsbodyH,apbodyH));
/* I dont need that anymore it was for putting a flat texture on a face. I chose a sphere instead!
//transform 3D for the face
Transform3D T3DFace = new Transform3D();
T3DFace.set(new Vector3f(0f,0f,.14f));
//create a TransformGroup for this Face
TransformGroup Face = new TransformGroup();
Face.setTransform(T3DFace);
//add the child box to the face;
Face.addChild(new com.sun.j3d.utils.geometry.Box(.20f,.20f,.2f,
primflagsbodyH,apbodyH));
//add this face to the head as a child
fortheHead.addChild(Face);
//tranform3d left arm
Transform3D T3DArmL = new Transform3D();
T3DArmL.set(new Vector3f(-0.79f,0.73f,0f));
//create Tranform Group for the leftarm
TransformGroup fortheArmL = new TransformGroup();
fortheArmL.setTransform(T3DArmL);
//add the group for upperarm
TransformGroup ArmL = new TransformGroup();
ArmL.addChild(new com.sun.j3d.utils.geometry.Box(.25f,.14f,.10f,
primflagsbody,apbody));
fortheArmL.addChild(ArmL);
//create a transform3D for the forearmleft
Transform3D T3DForearmL = new Transform3D();
T3DForearmL.set(new Vector3f(-.51f,0f,0f));
//create the tranformgroup for the forearmleft
TransformGroup ForearmL = new TransformGroup();
ForearmL.setTransform(T3DForearmL);
//add the child box to forearm
ForearmL.addChild(new com.sun.j3d.utils.geometry.Box(.20f,.14f,.10f,
primflagsbody,apbody));
ArmL.addChild(ForearmL);
//create transform 3d for the lefthand
Transform3D T3DHandL = new Transform3D();
T3DHandL.set(new Vector3f(-.42f,0f,0f));
//create the child tranform group for the box of the hand
TransformGroup HandL= new TransformGroup();
HandL.setTransform(T3DHandL);
//add the child hand to the forearm
ForearmL.addChild(HandL);
//create the box for the handLeft
HandL.addChild(new com.sun.j3d.utils.geometry.Box(.10f,.140f,.10f,
primflagsbody,apbody));
//Right Arm
//tranform3d right arm
Transform3D T3DArmR = new Transform3D();
T3DArmR.set(new Vector3f(0.79f,0.73f,0f));
//create Tranform Group for the right arm
TransformGroup fortheArmR = new TransformGroup();
fortheArmR.setTransform(T3DArmR);
//add the group for upperarm right
TransformGroup ArmR = new TransformGroup();
ArmR.addChild(new com.sun.j3d.utils.geometry.Box(.25f,.14f,.10f, primflagsbody,apbody));
//com.sun.j3d.utils.geometry.Box.GENERATE_NORMALS,new Appearance()));
fortheArmR.addChild(ArmR);
//create a transform3D for the forearmright
Transform3D T3DForearmR = new Transform3D();
T3DForearmR.set(new Vector3f(.51f,0f,0f));
//create the tranformgroup for the forearmright
TransformGroup ForearmR = new TransformGroup();
ForearmR.setTransform(T3DForearmR);
//add the child box to forearmright
ForearmR.addChild(new com.sun.j3d.utils.geometry.Box(.20f,.14f,.10f, primflagsbody,apbody));
ArmR.addChild(ForearmR);
//create transform 3d for the righthand
Transform3D T3DHandR = new Transform3D();
T3DHandR.set(new Vector3f(.42f,0f,0f));
//create the child tranform group for the box of the hand
TransformGroup HandR= new TransformGroup();
HandR.setTransform(T3DHandR);
//add the child hand to the forearmright
ForearmR.addChild(HandR);
//create the box for the handright
HandR.addChild(new com.sun.j3d.utils.geometry.Box(.10f,.14f,.10f, primflagsbody,apbody));
//Left Leg
//tranform3d left leg
Transform3D T3DLegL = new Transform3D();
T3DLegL.set(new Vector3f(0.43f,-1.23f,0f));
//create Tranform Group for the leftleg
TransformGroup fortheLegL = new TransformGroup();
fortheLegL.setTransform(T3DLegL);
//add the group for uppeleg
TransformGroup LegL = new TransformGroup();
LegL.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.35f,.10f, primflagsbody,apbody));
fortheLegL.addChild(LegL);
//create a transform3D for the downlegleft
Transform3D T3DDownLegL = new Transform3D();
T3DDownLegL.set(new Vector3f(0f,-.70f,0f));
//create the tranformgroup for the downegleft
TransformGroup DownLegL = new TransformGroup();
DownLegL.setTransform(T3DDownLegL);
//add the child box to downlegm
DownLegL.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.25f,.10f, primflagsbody,apbody));
LegL.addChild(DownLegL);
//create transform 3d for the leftfeet
Transform3D T3DFeetL = new Transform3D();
T3DFeetL.set(new Vector3f(.0f,-.45f,0f));
//create the child tranform group for the box of thefeet
TransformGroup FeetL= new TransformGroup();
FeetL.setTransform(T3DFeetL);
//add the child hand to the downleg
DownLegL.addChild(FeetL);
//create the box for the feetLeft
FeetL.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.10f,.15f, primflagsbody,apbody));
//Right Leg
//tranform3dright leg
Transform3D T3DLegR = new Transform3D();
T3DLegR.set(new Vector3f(-0.43f,-1.23f,0f));
//create Tranform Group for the righttleg
TransformGroup fortheLegR = new TransformGroup();
fortheLegR.setTransform(T3DLegR);
//add the group for uppelegR
TransformGroup LegR = new TransformGroup();
LegR.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.35f,.10f, primflagsbody,apbody));
fortheLegR.addChild(LegR);
//create a transform3D for the downlegright
Transform3D T3DDownLegR = new Transform3D();
T3DDownLegR.set(new Vector3f(0f,-.70f,0f));
//create the tranformgroup for the downegright
TransformGroup DownLegR = new TransformGroup();
DownLegR.setTransform(T3DDownLegR);
//add the child box to downlegRight
DownLegR.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.25f,.10f, primflagsbody,apbody));
LegR.addChild(DownLegR);
//create transform 3d for the rightfeet
Transform3D T3DFeetR = new Transform3D();
T3DFeetR.set(new Vector3f(.0f,-.45f,0f));
//create the child tranform group for the box of thefeetright
TransformGroup FeetR= new TransformGroup();
FeetR.setTransform(T3DFeetR);
//add the child feet right to the downleg
DownLegR.addChild(FeetR);
//create the box for the feetright
FeetR.addChild(new com.sun.j3d.utils.geometry.Box(.16f,.10f,.15f, primflagsbody,apbody));
//rajoute la box zetrunk et des fils
fortheTrunk.addChild(zeTrunk);
fortheTrunk.addChild(fortheHead);
fortheTrunk.addChild(fortheArmL);
fortheTrunk.addChild(fortheArmR);
fortheTrunk.addChild(fortheLegL);
fortheTrunk.addChild(fortheLegR);
//DEBUT CUBE
//beginning of rotation
TransformGroup objSpin=new TransformGroup();
//create transform 3d for box which spin
Transform3D T3DobjSpin = new Transform3D();
T3DobjSpin.set(new Vector3f(-2.50f,.45f,0f));
//create the child tranform group for the box which spin
objSpin.setTransform(T3DobjSpin);
//will allow to modify object while executing
objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
//alpha rotation time related
Alpha rotationAlpha=new Alpha(-1,900);
Alpha transAlpha=new Alpha(-1,900);
//transform 3d trans for the interpolatipon
Transform3D trans=new Transform3D();
//matrix for 2positions
Point3f[] chemin=new Point3f[3];
chemin[0]=new Point3f(-2.8f,0.40f,1.0f);
chemin[1]=new Point3f(-0.8f,0.40f,1.0f);
chemin[2]=new Point3f(-2.8f,0.40f,1.0f);
//matrix of floats to make the dots match with timeline
float[] timePosition={0.0f,0.50f,1.0f};
PositionPathInterpolator interpol=new PositionPathInterpolator(transAlpha,objSpin,trans,timePosition,chemin);
BoundingSphere bounds3=new BoundingSphere();
interpol.setSchedulingBounds(bounds3);
objSpin.addChild(interpol);
//behviour for our rotation
RotationInterpolator rotator= new RotationInterpolator(rotationAlpha,objSpin);
// area where rotation will be
BoundingSphere bounds=new BoundingSphere();
rotator.setSchedulingBounds(bounds);
objSpin.addChild(rotator);
//end of rtotation
//add transform group objspin to branchgroup humanoid
Humanoid.addChild(objSpin);
//test a cube which heritate of this rotation?
objSpin.addChild(new ColorCube(0.25));
//test
//module cube + transparency
// create an ALPHA transparency apparence (invisible)
Appearance app0x=new Appearance();
app0x.setColoringAttributes(new ColoringAttributes(new Color3f(0.3f,0.2f,1.0f),ColoringAttributes.SHADE_GOURAUD));
app0x.setTransparencyAttributes(new TransparencyAttributes(TransparencyAttributes.NICEST,0.5f));//0.5f represente 50% de transparence
// create the blue sphere which rotate
Transform3D transsphere=new Transform3D();
transsphere.set(new Vector3f(0.0f, -0.1f, 0.3f));
TransformGroup TGsphere=new TransformGroup(transsphere);
TGsphere.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objSpin.addChild(TGsphere);
//objRotatecube.addChild(TGsphere);
TGsphere.addChild( new Sphere(0.3f,app0x) );
//End Module Cube + Transparency
//END CUBE
//DEBUT WHOLE BIRD
//beginning of Rotation for Bird
TransformGroup Bird=new TransformGroup();
//will allow to modify object while executing
Bird.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
//alpha rotation time related
Alpha rotationAlphaBird=new Alpha(-1,400);
Alpha transAlphaBird=new Alpha(-1,5990);
//transform 3d trans for the interpolatipon
Transform3D transBird=new Transform3D();
//create transform 3d for the Bird
transBird.set(new Vector3f(1.90f,-.45f,0.9f));
//create the child tranform group for the Bird Box
Bird.setTransform(transBird);
//matrix for 2positions
Point3f[] cheminBird=new Point3f[3];
cheminBird[0]=new Point3f(1.95f,0.0f,-6.8f);
cheminBird[1]=new Point3f(1.95f,0.90f,-0.8f);
cheminBird[2]=new Point3f(1.95f,0.0f,5.8f);
//matrix of floats to make the dots match with timeline
float[] timePositionBird={0.00f,0.50f,1.0f};
PositionPathInterpolator interpolBird=new PositionPathInterpolator(transAlphaBird,Bird,transBird,timePosition,cheminBird);
BoundingSphere bounds3Bird=new BoundingSphere();
//BoundingSphere bounds3Bird= new BoundingSphere(new Point3d(0.0, 0.0, -50.0), 0.5);
interpolBird.setSchedulingBounds(bounds3Bird);
Bird.addChild(interpolBird);
//behviour for our rotation
RotationInterpolator rotatorBird= new RotationInterpolator(rotationAlphaBird,Bird);
// area where rotation will be
BoundingSphere boundsBird=new BoundingSphere();
rotatorBird.setSchedulingBounds(boundsBird);
Bird.addChild(rotatorBird);
//end of rotation For Bird
//add transform group objspin to branchgroup humanoid
Humanoid.addChild(Bird);
//debut test APPARENCE Wing Left
//test textures
// Configurer les couleurs
Color3f blackx = new Color3f(0.0f, 0.0f, 0.0f);
Color3f whitex = new Color3f(1.0f, 1.0f, 1.0f);
Color3f redx = new Color3f(0.7f, .75f, .75f);
// Configurer la texture
TextureLoader loaderx = new TextureLoader("C:\\java3d\\pois.jpg", "RGB", new Container());
Texture texturex = loaderx.getTexture();
texturex.setBoundaryModeS(Texture.WRAP);
texturex.setBoundaryModeT(Texture.WRAP);
texturex.setBoundaryColor( new Color4f( 0.0f, 1.0f, 0.0f, 0.0f ) );
// Configurer les attributs de la texture
// Param�tres possibles : REPLACE, BLEND ou DECAL (ici, MODULATE)
TextureAttributes texAttrx = new TextureAttributes();
texAttrx.setTextureMode(TextureAttributes.REPLACE);
Appearance apx = new Appearance();
apx.setTexture(texturex);
apx.setTextureAttributes(texAttrx);
//Configurer le mat�riau
apx.setMaterial(new Material(redx, blackx, redx, blackx, 1.0f));
int primflagsx = Primitive.GENERATE_NORMALS + Primitive.GENERATE_TEXTURE_COORDS;
//End test APPARENCE Wing Left
//test a cube which heritate of this rotation?
// Bird.addChild(new ColorCube(0.8));
//test bird body
// Bird.addChild(new com.sun.j3d.utils.geometry.Box(.25f,.22f,.45f,
// com.sun.j3d.utils.geometry.Box.GENERATE_NORMALS,new Appearance()));
Bird.addChild(new com.sun.j3d.utils.geometry.Box(.25f,.22f,.45f, primflagsx,apx));
//test WingRightBird
//create a transform3D for the BirdWIngR
Transform3D T3DBirdWingR = new Transform3D();
T3DBirdWingR.set(new Vector3f(0.45f,.0f,-0.35f));
//create the tranformgroup for the BirdWIngR
TransformGroup BirdWingR = new TransformGroup();
BirdWingR.setTransform(T3DBirdWingR);
//add the child box to BirdWIngR
// BirdWingR.addChild(new com.sun.j3d.utils.geometry.Box(.43f,.07f,.22f,
// com.sun.j3d.utils.geometry.Box.GENERATE_NORMALS,new Appearance()));
//End test WingRightBird
////////comments/////////
//beginning of Rotating WINR
//----------------------d�but de la cr�ation de la rotation--------------------------------
TransformGroup WinRSpin=new TransformGroup();
// permet de modifier l'objet pendant l'execution
WinRSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
// on cr�e un fonction de rotation au cours du temps
Alpha rotationAlphaWinRSpin=new Alpha(-1,1000);
Transform3D rot = new Transform3D();
rot.rotX((float)Math.PI/- 2.0f);
//rot.rotX(-45);
//rot.rotX((-Math.PI / 4.0)+30);
//rot.rotZ((-Math.PI / 4.0));
//rot.rotX(-Math.PI / 4.0);
//rot.rotY(-Math.PI / 4.0);
// rot.rotZ(-Math.PI / 4.0);
// rot.rotY(00);
//rot.rotZ(45);
// on cr�e un comportement qui va appliquer la rotation � l'objet voulu
// on d�finit la zone sur laquelle va s'appliquer la rotation
//RotationInterpolator rotatorWinRSpin=new RotationInterpolator(rotationAlphaWinRSpin,WinRSpin, rot, 0.50f,(float)(2.0*Math.PI));
RotationInterpolator rotatorWinRSpin=new RotationInterpolator(rotationAlphaWinRSpin,WinRSpin, rot, 25,26);
BoundingSphere boundsWinRSpin=new BoundingSphere(new Point3d((Math.PI / 4.0), 0.0, 0.0), 0.5);
// boundsWinRSpin.setCenter(new Point3d((Math.PI / 4.0),0,0));
boundsWinRSpin.setCenter(new Point3d(-10,0,0));
//boundsWinRSpin.setCenter();
//test put a t3d to a boundingsphere??
//Transform3D T3Dbounding = new Transform3D();
// T3Dbounding.set(new Vector3f(5.00f,0.0f,0.00f));
//WinRSpin.setTransform(T3Dbounding);
//end test put a t3d to a boundingsphere, not working
rotatorWinRSpin.setSchedulingBounds(boundsWinRSpin);
// test BoundingSphere of BODY BIRD rotatorWinRSpin.setSchedulingBounds(boundsBird);
WinRSpin.addChild(rotatorWinRSpin);
//----------------------End de la cr�ation de la rotation--------------------------------
BirdWingR.addChild(WinRSpin);
// on cree un cube qui h�rite de la rotation
//WinRSpin.addChild(new ColorCube(0.5));// de rayon 50 cm
WinRSpin.addChild(new com.sun.j3d.utils.geometry.Box(.43f,.07f,.22f, primflagsx,apx));
//End of Rotating WINR
//////// END comments/////////
//I commented the following, that was the TEST sinusoidal, rotation which help me understood how to rotate wingR
// -----------d�but de cr�ation de la rotation--------------------------------------------------
TransformGroup objSpinxx=new TransformGroup();
// permet de modifier l'objet pendant l'execution
objSpinxx.setCapability(TransformGroup.ALL

Thank you very much!
I cant believe this little comment has been so helpful!
But yes it is:
I explain, despite my efforts to find, googled it, forums, faqs, etc...
no where it mentionned the manifest.fm file is... INSIDE the .jar!
Your comment "a zip" made me attempt to open it with winrar, and I found a manifest.fm file inside!
So far I was editing the one at the "source" of my project and rebuilding it with netbeans.
I am going to try that now.
Actually.... :( no its mentionning my main class!
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 10.0-b19 (Sun Microsystems Inc.)
Main-class: courseworkjava3d.Simple3D
Class-Path:
X-COMMENT: Main-Class will be added automatically by buildWell I have no problems uploading you the .jar, it is for a coursework it is not a private project or whatever:
http://www.uploading.com/files/CM2LKWYU/BetaCourseworkJava3d_Final.jar.html
Oh and I felt on your comment "dont ask us" as if I was suppose to know... i'm a beginner, I did not know that! And I tried to give you so many infos so you dont lose your time if you want to help, especially as after my own research I found many, many results for this "main class" and I tried a few solutions!
Edited by: CupofTea on Apr 13, 2008 3:28 AM

Java Virtual Machine Launcher could not find the main class - program will

I have installed J2SE and followed all the instructions but upon restarting the PC I get a dialogue box with the messege Java Virtual Machine Launcher could not find the main class - program will exit.
I have tried multiple times un-installing and re-intalling this but i still get the messege when i restart windows.
Can anyone offer any suggestions as to what i may be doing wrong.
When I do the verify installation I get the congtratulations you have the latest Java Installed.
Help

Something is being automatically started when the pc starts. Assuming Windows, to see what it is, learn to use the msconfig program:
http://www.google.com/search?q=how+to+use+msconfig
Apparently, whatever it is, it's not correctly configured.

Execute jar file: "could not find the main class" program will terminate

Hey,
I am new to Java. I have started to make a small java program which supposed to help me at my studies to lean the Dominic Memory System. I have used the latest version of Netbeans 5.5.1 to build my program in. I have two problems which I cannot figure out how to solve, please help me.
The first problem is that the java script I have made works when I compile it in Netbeans, but when I create a Jar file it does not work. I receive a pop up message in windows ?could not find the main class program will terminate? when I execute the jar file.
The second problem I have is that I need to compare the strings generated by the "numbers" and "TIP" and if the numbers is not identical the numbers in the ?Center? JPanel should be highlighted as red.
If anyone would like to clean up the code I would be pleased. I have copied quite a lot from anyone because of my one lack of knowledge.
* GoListener.java
* Created on 12. september 2007, 21:48
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package grandmaster;
import java.awt.event.*;
import javax.swing.*;
import java.util.Vector;
import java.util.StringTokenizer;
import java.awt.Color;
* @author Computer
public class GoListener implements ActionListener {
private JTextField viewer;
private JTextField TIP;
private JTextField freq;
private JTextField max_num;
private Vector numbers;
public GoListener(JTextField j,JTextField k, JTextField m, JTextField f, Vector n) {
freq = f;
max_num = m;
viewer = j;
numbers = n;
TIP = k;
public void actionPerformed(ActionEvent e){
int time = Integer.valueOf(max_num.getText());
int f = Integer.valueOf(freq.getText());
if (e.getActionCommand() == "GO") {
for (int i = 0; i< time;++i) {
int number=0;
number = (int)Math.floor(100*Math.random());
while(number>51){
number = (int)Math.floor(100*Math.random());
if(number<=9){
viewer.setText(" "+"0" + String.valueOf(number) + " ");
} else{
viewer.setText(" " + String.valueOf(number) + " ");
viewer.paintImmediately(viewer.getBounds());
numbers.add(number);
try {
Thread.sleep(f*1000);
} catch (Exception exp) {
viewer.setText(" XX ");
viewer.paintImmediately(viewer.getBounds());
if (e.getActionCommand() == "VIEW") {
try {
//int numb = Integer.valueOf( TIP.getText() ).intValue();
StringTokenizer tokenizer = new StringTokenizer(TIP.getText(), " ");
String[] split = null;
int tokenCount = tokenizer.countTokens();
if (tokenCount > 0) {
split = new String[tokenCount];
for (int current = 0; current < tokenCount; current++) {
split[current] = tokenizer.nextToken();
viewer.setText(" " + String.valueOf(numbers) + " ");
// k=numbers(1);
/*while(c<i){
String.valueOf(k).equals(split[1]);
c++;
TIP.setText(" " + split[2] + " ");
} catch (Exception exp) {
try {
//string testit = numb.toString();
//String str = "" + numb;
//viewer.setText(str);
//viewer.setText(numbers.toString());
numbers.clear();
} catch (Exception exp) {
* Main.java
* Created on 12. september 2007, 21:07
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package grandmaster;
import java.util.Vector;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.JButton;
import java.awt.*;
import grandmaster.GoListener;
* @author Computer
public class Main extends JFrame {
private JTextField viewer;
public JTextField TIP;
// private TextInputPanel TIP;
private Vector numbers;
/** Creates a new instance of Main */
public Main() {
numbers = new Vector();
JPanel p = new JPanel(new GridLayout(0,4));
JButton go = new JButton();
JButton view_num = new JButton();
go.setText("Go!");
go.setVisible(true);
go.setActionCommand("GO");
view_num.setText("VIEW");
view_num.setVisible(true);
view_num.setActionCommand("VIEW");
JTextField max_num = new JTextField();
max_num.setText("5");
JTextField freq = new JTextField();
freq.setText("1");
viewer = new JTextField();
viewer.setText("XX");
TIP = new JTextField("");
p.add(go);
p.add(max_num);
p.add(freq);
p.add(view_num);
getContentPane().add(p,BorderLayout.NORTH);
getContentPane().add(viewer,BorderLayout.CENTER);
getContentPane().add(TIP,BorderLayout.SOUTH);
setSize(200,200);
GoListener g = new GoListener(viewer,TIP,max_num, freq, numbers);
go.addActionListener(g);
view_num.addActionListener(g);
* @param args the command line arguments
public static void main(String[] args) {
// TODO code application logic here
Main window = new Main();
window.setVisible(true);
}

NetBeans questions should be posted to the NB site. It has mailing lists and associated forums.
This tutorial from the NB site addresses running programs outside of NB
http://www.netbeans.org/kb/articles/javase-deploy.html
When you compare objects, use ".equals()" and reserve == for comparing values.

Error - Java Virtual Machine cannot be loaded

I have installed J2SE Runtime Environment 5.0 Update 10 and have been trying to run Hp Openview Service Desk 4.5, when I try to run it's client application I get the error
"Unable to start the application -- the Java Virtual Machine cannot be loaded. Class no registered."
I've tried reinstalling both as well as rebooting after each installation to no avail.. any help would be greatly appreciated.
thanks

Installing the Java Virtual Machine
The Java Virtual Machine is a program that is necessary for running Java programs such as PhotoSite AlbumBuilder. To install the Microsoft Java Virtual Machine, download and run the appropriate installer below. After you install it, restart your computer.
Windows 98/NT/ME/XP/2000 (SP1/SP2) users:
http://support.photosite.com/msjavx86.exe
Windows 2000 (SP3) users:
http://support.photosite.com/Q300845.exe
Windows 2000 users (Service Pack 4):
Microsoft provides no installer for Windows 2K + SP4. You must either revert to an earlier Service Pack or upgrade to Windows XP instead.
* NOTE: You must be logged into an "Administrator" account to install the Virtual Machine.

My Java Virtual Machine cannot be found?

I just installed SPSS (statistics software) for school. I have an error at -36 and my Java Virtual Machine cannot be found. What is the issue, and what are my options?

You may need to download re-install Java. Click Support in the upper right of this page - Downloads - then type the word "Java" in the search field and look to see if there is a recent one for Snow Leopard. For example I located this one which may work for your system:
http://support.apple.com/kb/DL1360

Cannot find main class

Hi,
Im trying to launch a program called HypnoQuit from www.splashportal.net/java with jws.
Heres the jnlp:
<?xml version="1.0" encoding="utf-8"?>

<jnlp spec="1.0+"
codebase="http://www.splashportal.net/java/"
href="HypnoQuit.jnlp">
<information>
<title>Hotel v1.0</title>
<vendor>Aubrey Bourke</vendor>
<description>HypnoQuit v1.0</description>
<homepage href="http://www.splashportal.net/java/index.html"/>
<description kind="short">Program that displays subliminal messages</description>
<offline-allowed/>
</information>
<resources>
     <jar href="HypnoQuit.jar"/>
     <j2se version="1.6+"
     href="http://java.sun.com/products/autodl/j2se"/>
</resources>
<application-desc main-class="HypnoQuit"/>
<security>
<all-permissions/>
</security>
</jnlp>
Why cant it find the main-class?

refer to http://forums.sun.com/thread.jspa?threadID=5314915&tstart=15

JWS cannot find main class - sometimes

I have a swing application which I've deployed onto several pc's using JWS.
On my PC I can launch the application using the icon which JWS installed and it works properly every time. On the other PC's it will always work the first time it is used after installation, but on subsequent runs it will sometimes works and sometimes fail with an error message suggesting it cannot find the main class.
The error is java.lang.ClassNotFoundException: RichMonV15.Richmon
What I cannot understand is why it will sometimes work, and other times not.
This has me completely stumped, can anyone offer any advice?

The posted JNLP was invalid (I do not know if it is causing the problem, but cannot see how an invalid JNLP would cause the kind of intermittent problem you describe).
Here is a valid form of that JNLP
<?xml version = '1.0' encoding = 'windows-1252'?>
<jnlp spec="1.0+" codebase="http://richmonitor.googlepages.com/" href="RichMonV15.jnlp">
   <information>
      <title>RichMon V15</title>
      <vendor>Richard Wright</vendor>
      <homepage href="http://richmonitor.googlepages.com/downloadrichmonversion15"/>
      <description>Lightweight Database Monitoring Tool</description>
      <icon href="RichMonV1504.gif"/>
      <offline-allowed/>
      <shortcut>
         <desktop/>
         <menu submenu="RichMon"/>
      </shortcut>
   </information>
   <security>
      <all-permissions/>
   </security>
   <resources>
      <j2se version="1.6*" href="http://java.sun.com/products/autodl/j2se"/>
      <jar href="sRichMonV15.jar" main="true" download="eager"/>
   </resources>
   <application-desc main-class="RichMonV15.RichMon"/>
</jnlp>But this could be optimised by removing the codebase from the homepage href, and I am almost sure JNLP files should be UTF-8 encoding. So I recommend you swap that file, for this one (encoded as per stated claims, of course)..
<?xml version = '1.0' encoding = 'UTF-8'?>
<jnlp spec="1.0+" codebase="http://richmonitor.googlepages.com/" href="RichMonV15.jnlp">
   <information>
      <title>RichMon V15</title>
      <vendor>Richard Wright</vendor>
      <homepage href="downloadrichmonversion15"/>
      <description>Lightweight Database Monitoring Tool</description>
      <icon href="RichMonV1504.gif"/>
      <offline-allowed/>
      <shortcut>
         <desktop/>
         <menu submenu="RichMon"/>
      </shortcut>
   </information>
   <security>
      <all-permissions/>
   </security>
   <resources>
      <j2se version="1.6*" href="http://java.sun.com/products/autodl/j2se"/>
      <jar href="sRichMonV15.jar" main="true" download="eager"/>
   </resources>
   <application-desc main-class="RichMonV15.RichMon"/>
</jnlp>

"Unable to start the application - The Java Virtual Machine cannot be loade

I have been trying to instal an old scanner using its CD, and during the process, at about configure files, the error message in title comes up.
Is this why the HP scanner Director won't scan a document, saying the scanner is not connected properly?

If it works on the one computer, see what JRE you have - if any by doing this: go to a command prompt(used to call it a DOS window) and key in:
java -versionAlternatively, go to your add/remove programs menu and scan for a Java version.
Whichever version is mentioned - go to
the http://java.sun.com/products/archive/
... get that and put it on your other computer.

(Java Virtual Machine) Cannot Find Main Class. Program will exit!

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