Getting graphic display with GL4java

Question

Hello .. I'm trying to get a basic display with GL4java. I'm able
to create the main window but cannot get any openGL display. I've first defined a class which extends from JFrame who is the main window. From the panel, I've added a class which extends from Canvas. This is the class where I define the openGL configurations.. !
I don't know why I can't get an openGL display. Would you know what I'm doing wrong.
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code from Graphique.java
/* Generated by Together */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.applet.*;
import java.net.*;
import java.lang.*;
import java.util.*;
import java.io.*;
import gl4java.*;
import gl4java.awt.*;
import gl4java.drawable.*;
import gl4java.utils.textures.*;
import gl4java.utils.glut.*;
public class Graphique extends Canvas implements GLEventListener, MouseListener, MouseMotionListener, KeyListener{
constructeur
public Graphique()
setSize(400,400);
addKeyListener(this);
x = 0;
y = 0;
public void init(GLDrawable drawable)
System.out.println("ICI");
gl = drawable.getGL();
glu = drawable.getGLU();
glut = new GLUTFuncLightImpl(gl, glu);
glj = drawable.getGLContext();
this.gldrawable = drawable;
public void display(GLDrawable drawable)
//gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glu.gluLookAt(0.0,0.0,10.0,0.0,0.0,0.0,0.0,-1.0,0.0);
gl.glMatrixMode(GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45.0f,1.0,0.1f,150.0f);
gl.glMatrixMode(GL_MODELVIEW);
gl.glBegin(gl.GL_QUADS);
gl.glColor3d(1.0,0.0,0.0);
gl.glVertex3d(0.0,0.0,1.0);
gl.glVertex3d(1.0,0.0,1.0);
gl.glVertex3d(1.0,1.0,1.0);
gl.glVertex3d(0.0,1.0,1.0);
gl.glColor3d(0.0,1.0,0.0);
gl.glVertex3d(3.0,3.0,1.0);
gl.glVertex3d(4.0,3.0,1.0);
gl.glVertex3d(4.0,4.0,1.0);
gl.glVertex3d(3.0,4.0,1.0);
gl.glColor3d(0.0,0.0,1.0);
gl.glVertex3d(4.0,4.0,1.0);
gl.glVertex3d(5.0,4.0,1.0);
gl.glVertex3d(5.0,5.0,1.0);
gl.glVertex3d(4.0,5.0,1.0);
gl.glEnd();
public void reshape(gl4java.drawable.GLDrawable gld, int width, int height)
float h = (float) height / (float) width;
gl.glViewport(0,0,width,height);
gl.glMatrixMode(GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45.0f,1.0,0.1f,150.0f);
gl.glMatrixMode(GL_MODELVIEW);
gl.glLoadIdentity();
public void cleanup(GLDrawable drawable)
System.out.println("destroy(): " + this);
drawable.removeMouseListener(this);
drawable.removeMouseMotionListener(this);
public void postDisplay(GLDrawable drawable) {}
public void preDisplay(GLDrawable drawable) {}
paint(Graphics)
public void paint(Graphics g) {
//g.drawRect(x, y, x+1, y+1); // draw border
//g.drawString("le jeu va ici :)", 20,20);
//setBackground(Color.blue);
GLFunc gl;
gl.glPushMatrix();
gl.glPopMatrix();
keyPressed(KeyEvent)
public void keyPressed(KeyEvent evt)
int no = evt.getKeyCode();
System.out.println(no);
switch(no)
case 40: //DOWN
y += 5;
break;
case 39: //RIGHT
x += 5;
break;
case 37: //LEFT
x -= 5;
break;
case 38: //UP
y -= 5;
break;
case 10: //ENTER
break;
case 27: //ESC
break;
case 17: //CTRL
break;
case 18: //ALT
break;
//repaint();
keyReleased(KeyEvent)
public void keyReleased(KeyEvent evt)
int no = evt.getKeyCode();
//System.out.println(c);
keyTyped(KeyEvent)
public void keyTyped(KeyEvent evt){}
public void mouseExited(MouseEvent evt) {}
public void mousePressed(MouseEvent evt) {}
public void mouseReleased(MouseEvent evt) {}
public void mouseClicked(MouseEvent evt) {}
public void mouseDragged(MouseEvent evt) {}
public void mouseMoved(MouseEvent e) {}
public void mouseEntered(MouseEvent evt) {}
int x;
int y;
private GLFunc gl;
private GLUFunc glu;
private GLUTFunc glut;
private GLContext glj;
private GLDrawable gldrawable;
//private Joueur joueur1;
//private Joueur joueur2;
//private Joueur joueur3;
//private Joueur joueur4;
//private Plateau UnPlateau;
}

Answer 1

That's what I did. However, I browse the code given with the NeHe jars and was able to retrieve the information I needed to start my application.
Still, there's something that's bugging me. I can run my application with JBuilder, but not using java, javac MSdos tools. I receive an error saying that my class is not recognized when I add to classpath to gl4java jars.
the reason why I want to use java basic tools is that my computer just crashed a few time when I executed the program. I believe it's because of JBuilder which is oversurpassing my computer's ressources. You see, I use a pII 266 with 64meg ram, while the recommended speed is 128meg ram.
thanks again for your time :)