simple opengl test gleventlistener

package com.gmail.bernabe.laurent.jogl.simple_test;

import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.glu.GLU;

public class MyGLEventListener implements GLEventListener {

    @Override
    public void init(GLAutoDrawable drawable) {
        // TODO Auto-generated method stub
    }

    @Override
    public void dispose(GLAutoDrawable drawable) {
        // TODO Auto-generated method stub

    }

    @Override
    public void display(GLAutoDrawable drawable) {
        GL2 gl = drawable.getGL().getGL2();
        gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
        gl.glLoadIdentity();
        glu.gluLookAt(0f, 0f, 5f,
                0f, 0f, 0f,
                0f, 1f, 0f);

        gl.glColor3f(1.0f, 0f, 0f);
        gl.glBegin(GL2.GL_TRIANGLES);
            gl.glVertex2f(0f, 1f);
            gl.glVertex2f(-1f, 0f);
            gl.glVertex2f(+1f, 0f);
        gl.glEnd();
    }

    @Override
    public void reshape(GLAutoDrawable drawable, int x, int y, int width,
            int height) {
        GL2 gl = drawable.getGL().getGL2();
        gl.glViewport(x, y, width, height);
        gl.glMatrixMode(GL2.GL_PROJECTION);
        gl.glLoadIdentity();
        glu.gluPerspective(60f, (float) width / height, 0.1f, 10f);
        gl.glMatrixMode(GL2.GL_MODELVIEW);
    }

    private GLU glu = new GLU();
}