[SOLVED] [LWJGL] Why does Lightning not Work?

Hello,

Today i've tried to do some Lightning in my Simple 3D Pyramid.
I've read the NeHe tutorials and searched with google, but every code for Lightning that i used doesn't work.

Here is my SourceCode:

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package com;

import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.opengl.GL11;
import org.newdawn.slick.opengl.Texture;
import org.newdawn.slick.opengl.TextureLoader;
import java.io.FileInputStream;
import org.lwjgl.util.glu.*;
import org.lwjgl.input.Keyboard;

import java.nio.FloatBuffer;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;

/**
 *
 * @author penguin
 */
public class main {

  public static void main(String[] args) {
      try {
          Display.setDisplayMode(new DisplayMode(800,600));
          Display.setTitle("3D Pyramid");
          Display.create();
      } catch(Exception e) {
       
      }
          initGL();

          float rtri = 0.0f;
          Texture texture = null;
        try {
            texture = TextureLoader.getTexture("JPG", new FileInputStream("E:/Textur.jpg"));
        } catch (Exception ex) {
            ex.printStackTrace();
        }
      while(!Display.isCloseRequested()) {
          // Draw a Triangle :D

          GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

          GL11.glLoadIdentity();

     GL11.glTranslatef(0.0f,0.0f,-10.0f);

          GL11.glRotatef(rtri, 0.0f, 1.0f, 0.0f);

          texture.bind();

          GL11.glBegin(GL11.GL_TRIANGLES);

            GL11.glTexCoord2f(0.0f, 1.0f);
            GL11.glVertex3f(0.0f, 1.0f,0.0f);
            GL11.glTexCoord2f(-1.0f,-1.0f);
            GL11.glVertex3f(-1.0f, -1.0f,1.0f);
            GL11.glTexCoord2f(1.0f, -1.0f);
            GL11.glVertex3f(1.0f, -1.0f,1.0f);

            GL11.glTexCoord2f(0.0f, 1.0f);
            GL11.glVertex3f( 0.0f, 1.0f, 0.0f);
            GL11.glTexCoord2f(-1.0f,-1.0f);
            GL11.glVertex3f( 1.0f,-1.0f, 1.0f);
            GL11.glTexCoord2f(1.0f, -1.0f);
            GL11.glVertex3f( 1.0f,-1.0f, -1.0f);

            GL11.glTexCoord2f(0.0f, 1.0f);
            GL11.glVertex3f( 0.0f, 1.0f, 0.0f);
            GL11.glTexCoord2f(-1.0f,-1.0f);
            GL11.glVertex3f(-1.0f,-1.0f, -1.0f);
            GL11.glTexCoord2f(1.0f, -1.0f);
            GL11.glVertex3f( 1.0f,-1.0f, -1.0f);

            GL11.glTexCoord2f(0.0f, 1.0f);
            GL11.glVertex3f(0.0f, 1.0f,0.0f);
            GL11.glTexCoord2f(-1.0f,-1.0f);
            GL11.glVertex3f(-1.0f, -1.0f,-1.0f);
            GL11.glTexCoord2f(1.0f, -1.0f);
            GL11.glVertex3f(-1.0f, -1.0f,1.0f);


          GL11.glEnd();

          GL11.glBegin(GL11.GL_QUADS);
            GL11.glVertex3f( 1.0f,-1.0f, 1.0f);
            GL11.glVertex3f( 1.0f,-1.0f, -1.0f);
            GL11.glVertex3f(-1.0f,-1.0f, -1.0f);
            GL11.glVertex3f(-1.0f,-1.0f, 1.0f);
          GL11.glEnd();

          Display.update();
          rtri += 0.5f;
          // Exit-Key = ESC
          boolean exitPressed = Keyboard.isKeyDown(Keyboard.KEY_ESCAPE);
          if(exitPressed) {
              System.out.println("Escape was pressed!");
              Display.destroy();

          }
      }

      Display.destroy();
  }

  private static void initGL() {
        GL11.glMatrixMode(GL11.GL_PROJECTION);
        GL11.glLoadIdentity();
        GLU.gluPerspective(45.0f,((float)800)/((float)600),0.1f,100.0f);
        GL11.glMatrixMode(GL11.GL_MODELVIEW);
        GL11.glLoadIdentity();

        GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL11.glShadeModel(GL11.GL_SMOOTH);
        GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
        GL11.glClearDepth(1.0f);
        GL11.glEnable(GL11.GL_DEPTH_TEST);
        GL11.glDepthFunc(GL11.GL_LEQUAL);
        GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
        float lightAmbient[] = { 0.5f, 0.5f, 0.5f, 1.0f };  // Ambient Light Values
        float lightDiffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };      // Diffuse Light Values
        float lightPosition[] = { 0.0f, 0.0f, 2.0f, 1.0f }; // Light Position

        ByteBuffer temp = ByteBuffer.allocateDirect(16);
        temp.order(ByteOrder.nativeOrder());
        GL11.glLight(GL11.GL_LIGHT1, GL11.GL_AMBIENT, (FloatBuffer)temp.asFloatBuffer().put(lightAmbient).flip());              // Setup The Ambient Light
        GL11.glLight(GL11.GL_LIGHT1, GL11.GL_DIFFUSE, (FloatBuffer)temp.asFloatBuffer().put(lightDiffuse).flip());              // Setup The Diffuse Light
        GL11.glLight(GL11.GL_LIGHT1, GL11.GL_POSITION,(FloatBuffer)temp.asFloatBuffer().put(lightPosition).flip());         // Position The Light
        GL11.glEnable(GL11.GL_LIGHT1);                          // Enable Light One
  }
}

Now, can someone here help me to get this work?

Thanks,
Penguin