GLDisplay error

Hi all, what do I need to change not to get this error?

@hum301-09 ~]$ javac Lesson01.java
Lesson01.java:10: cannot find symbol
symbol : class GLDisplay
location: class Lesson01
GLDisplay neheGLDisplay = GLDisplay.createGLDisplay(“Lesson 01: An OpenGL Window”);
^
Lesson01.java:10: cannot find symbol
symbol : variable GLDisplay
location: class Lesson01
GLDisplay neheGLDisplay = GLDisplay.createGLDisplay(“Lesson 01: An OpenGL Window”);
^

hi bernie,
the layout for nehe is very bad.
i can never finish reading a tutorial
from there since they changed to
there current layout. so i can’t help.

however, i have finished porting
the red book, and i am updating
links and jnlp files. watch for a
new thread later in the day.