One tool which is pretty good (if you have lots of RAM) and is free is Forte
2.0 Community Edition (download from www.sun.com).
Eric
----- Original Message -----
From: "Andy Tay" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 24, 2000 11:19 PM
Subject: Re: [JAVA3D]
> Where do i get the java debugging tools cause i am still quite fresh with
> java..
>
> Andy
> ----- Original Message -----
> From: John D <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, December 24, 2000 9:33 PM
> Subject: Re: [JAVA3D]
>
>
> > At a glance, it does not look like you have
> > instantiated each coordinates value in your for loop;
> > you only instantiated the array itself. Come to think
> > of it, you could not possibly be even entering the for
> > loop or you would get a null-pointer exception when
> > you try to set the x and y...bvol must be equal to
> > zero. You really try try some of the java debugging
> > tools, they probably would made this clear very
> > quickly.
> >
> > --- Andy Tay <[EMAIL PROTECTED]> wrote:
> > > This is a part of my source code for my project...
> > > It is giving me alot of problem and i still couldn't
> > > figure how to correct it.. Can any one help me.. It
> > > is quite urgent cause my deadline is coming soon...
> > >
> > > private Geometry sphereGeometry() {
> > >
> > > int f;
> > >
> > > int r = 50;
> > > int xc = 100;
> > > int yc = 100;
> > > int zc = 100;
> > > int v;
> > > int bvol;
> > > float rx, ry, rz, spanx, spany, spanz, randx,
> > > randy, randz;
> > >
> > > bvol =
> > > ((xc+r)-(xc-r))*((yc+r)-(yc-r))*((zc+r)-(zc-r));
> > >
> > > v = bvol*(60/100);
> > >
> > > Point3f[] coordinates;
> > >
> > > coordinates = new Point3f[bvol];
> > >
> > > for(f = 0; f < v; f++){
> > > randx = 0.0f + (float) (Math.random() * 1.0f);
> > > randy = 0.0f + (float) (Math.random() * 1.0f);
> > > randz = 0.0f + (float) (Math.random() * 1.0f);
> > >
> > > spanx = (xc+r)-(xc-r);
> > > spany = (yc+r)-(yc-r);
> > > spanz = (zc+r)-(zc-r);
> > >
> > > rx = (randx*spanx)+(xc-r);
> > > ry = (randy*spany)+(yc-r);
> > > rz = (randz*spanz)+(zc-r);
> > >
> > > if
> > >
> > (((rx-xc)*(rx-xc))+((ry-yc)*(ry-yc))+((rz-zc)*(rz-zc))
> > > <= r) {
> > > coordinates[f].x = rx;
> > > coordinates[f].y = ry;
> > > coordinates[f].z = rz;
> > > }
> > > }
> > >
> > > PointArray point = new PointArray(bvol,
> > > PointArray.COORDINATES);
> > > point.setCoordinates(0, coordinates);
> > >
> > > return point;
> > >
> > > } // end of method SphereGeometry in class Bone
> > >
> > > When i compile, it doesn't show any problem but when
> > > i run, i show me this errors.... I really hope that
> > > anyone out that can help me with this problem
> > > thanks....
> > >
> > > java.lang.NullPointerException
> > > at
> > >
> > javax.media.j3d.GeometryArrayRetained.setCoordinates<CompiledCode>
> > > at
> > >
> > javax.media.j3d.GeometryArray.setCoordinates<GeometryArray.java:333>
> > > at
> > > FinalProject$Bone.sphereGeometry<Compiled Code>
> > > at
> > > FinalProject$Bone.<init><FinalProject.java:27>
> > > at
> > > FinalProject.createSceneGraph<FinalProject.java:114>
> > > at
> > > FinalProject.<init><FinalProject.java:142>
> > > at java.lang.Class.newInstance0<Native
> > > Method>
> > > at
> > > java.lang.Class.newInstance<Class.java:239>
> > > at
> > >
> > sun.applet.AppletPanel.createApplet<AppletPanel.java:532>
> > > at
> > >
> > sun.applet.AppletPanel.runLoader<AppletPanel.java:468>
> > > at sun.applet.AppletPanel.run<Compiled
> > > Code>
> > > at java.lang.Thread.run<Thread.java:479>
> > >
> > > Andy
> > >
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Shopping - Thousands of Stores. Millions of Products.
> > http://shopping.yahoo.com/
> >
> >
>
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to
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>
>
===========================================================================
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body
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> [EMAIL PROTECTED] and include in the body of the message "help".
>
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