Cannot Resolve Symbol

**r035198x** · Oct 19 '06, 06:24 AM

Originally posted by vsp15584

Hii..i use the coding as below :-

import java.applet.app let;
import java.awt.*;
import com.sun.j3d.uti ls.applet.mainf rame;
import com.sun.j3d.uti ls.universe.*;
import com.sun.j3d.uti ls.geometry.*;
import javax.media.j3d .*;
import javax.vecmath.* ;

public class J3DLinesPoints extends Applet {
private SimpleUniverse u=null;

public BranchGroup createScene() {
BranchGroup objRoot = new BranchGroup();
TransformGroup tg = new TransformGroup( );
Shape3D shapeLine = new Shape3D();
Transform3D t3d2 = new Transform3D();

PointArray pa = new PointArray(2,Po intArray.COORDI NATES | pOINTaRRAY.colo r_3);
LineArray la= new LineArray(2,Lin eArray.COORDINA TES |LineArray.cOLO R_3);
Point3d[] ptsPoints = new Point3d[2];
Point3d[] ptsLine = new Point3d[2];
PointAttributes ptAtt = new PointAttributes ();
Color3f[] colors = new Color3f[2];
Appearance appPoint = new Appearance();
t3d2.setscale(0 .2);
tg.setTransform (t3d2);
objRoot.addChil d(tg);

ptsPoints[0] = new Point3d(2,3,-2);
ptsPoints[1] = new Point3d(2,4,-2);
ptsLine[0] = new Point3d(1,1,-2);
ptsLine[1] = new Point3d(-2,2,-2);

colors[0] = new Color3f(1.0f,0. 0f, 0.0f); //red
colors[1] = new color3f(0.0f,0. 0f, 1.0f); //blue

pa.setCoordinat es(0,ptsPoints) ; //set the coordinates of the points into the Point Array
pa.setColors(0, colors);
ptAtt.setPointS ize(5.0f); //increase size of points to make them more visible
appPoint.setPOi ntAttributes(pt Att);
shapePOint.setG eometry(pa);
shapePoint.setA ppearance(appPo int);

la.setCoordinat es(0,ptsLine); //set the coordinates of the line points into the LineArray
la.setColors(0, colors);
shapeLine.setGe ometry(la);

tg.addChild(sha pePoint);
tg.addChild(sha peLine);
objRoot.compile ();
return objRoot;
}

public void init() {
setLayout(new BorderLayout()) ;
GraphicsConfigu ration config = SimpleUniverse. getPreferredCon figuration();
Canvas3D canvas = new Canvas3D(config );
canvas.setBackg round(Color.yel low);
add("Center", canvas);
BranchGroup Scene= createScene();
u = new SimpleUniverse (canvas);
u.getViewingPla tform().setNomi nalViewingTrans form();
u.addBranchGrap h(scene);
}

public static void main(String[] args) {
new MainFrame(new J3DLinesPoints( ),500,400);
}
}

and the errors which i get in COMMAND prompt are as follows :-

U:\cadcam\java> javac J3DLinesPoints. java
J3DLinesPoints. java:1: cannot resolve symbol
symbol : class applet
location: package applet
import java.applet.app let;
^
J3DLinesPoints. java:3: cannot resolve symbol
symbol : class mainframe
location: package applet
import com.sun.j3d.uti ls.applet.mainf rame;
^
J3DLinesPoints. java:9: cannot resolve symbol
symbol : class Applet
location: class J3DLinesPoints
public class J3DLinesPoints extends Applet {
^
J3DLinesPoints. java:18: cannot resolve symbol
symbol : variable pOINTaRRAY
location: class J3DLinesPoints
PointArray pa = new PointArray(2,Po intArray.COORDI NATES
| pOINTaRRAY.colo r_3);

^
J3DLinesPoints. java:19: cannot resolve symbol
symbol : variable cOLOR_3
location: class javax.media.j3d .LineArray
LineArray la= new LineArray(2,Lin eArray.COORDINA TES |Lin
eArray.cOLOR_3) ;

^
J3DLinesPoints. java:25: cannot resolve symbol
symbol : method setscale (double)
location: class javax.media.j3d .Transform3D
t3d2.setscale(0 .2);
^
J3DLinesPoints. java:35: cannot resolve symbol
symbol : class color3f
location: class J3DLinesPoints
colors[1] = new color3f(0.0f,0. 0f, 1.0f); //blue
^
J3DLinesPoints. java:40: cannot resolve symbol
symbol : method setPOintAttribu tes (javax.media.j3 d.PointAttribut es)
location: class javax.media.j3d .Appearance
appPoint.setPOi ntAttributes(pt Att);
^
J3DLinesPoints. java:41: cannot resolve symbol
symbol : variable shapePOint
location: class J3DLinesPoints
shapePOint.setG eometry(pa);
^
J3DLinesPoints. java:42: cannot resolve symbol
symbol : variable shapePoint
location: class J3DLinesPoints
shapePoint.setA ppearance(appPo int);
^
J3DLinesPoints. java:48: cannot resolve symbol
symbol : variable shapePoint
location: class J3DLinesPoints
tg.addChild(sha pePoint);
^
J3DLinesPoints. java:55: cannot resolve symbol
symbol : method setLayout (java.awt.Borde rLayout)
location: class J3DLinesPoints
setLayout(new BorderLayout()) ;
^
J3DLinesPoints. java:59: cannot resolve symbol
symbol : method add (java.lang.Stri ng,javax.media. j3d.Canvas3D)
location: class J3DLinesPoints
add("Center", canvas);
^
J3DLinesPoints. java:63: cannot resolve symbol
symbol : variable scene
location: class J3DLinesPoints
u.addBranchGrap h(scene);
^
J3DLinesPoints. java:67: cannot resolve symbol
symbol : class MainFrame
location: class J3DLinesPoints
new MainFrame(new J3DLinesPoints( ),500,400);
^
15 errors

I am very new..to this java programming so please if you can give me some detailed explannations for the answers.

I refer few blogs on the site for the same error which suggests to give CLASS PATH along with the "javac" command....i tried that too..
but i was not able to do that...

thank you
vishal patel

Java is case sensitive. Class names in you program are starting with uppercase but your import statements are importing classes with all lowercase.
change your imports to
import com.sun.j3d.uti ls.applet.Mainf rame;
import java.applet.App let;
Only then can we tell whether your class path is wrong or not.

Cannot Resolve Symbol

Cannot Resolve Symbol

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