Actually this is a question, that is both complex and basic. Your wording suggests, that you have no idea of opengl texture handling and
how a basic language structure like an array works.
Have you already code running, using a single texture?
If not, easiest way would probably be using slick-utils (http://slick.cokeandcode.com/downloads/util/
) and this example: http://lwjgl.org/wiki/index.php?title=Slick-Util_Library_-_Part_1_-_Loading_Images_for_LWJGL
, but this hides away the actual texture handling internals of opengl (which you might need to understand at some point anyway), so also take a look at the nehe texture mapping lesson (http://nehe.gamedev.net/data/lessons/lesson.asp?lesson=06
If you are still struggeling using java, the language, do and understand
the tutorials found under "Trails Covering the Basics" on the official java tutorials page (http://download.oracle.com/javase/tutorial/
As soon as you have code you understand
for loading a single texture and you understood javas array handling, your question is answered.
If this is not the kind of advice you need, the best way would be to try something for yourself and post the code along with a description what's not working as you'd expected. Generic questions like "how do I do this or that" are mostly ignored or require huge amount af additional clearifications, which is tedious to deal with (and so are mostly ignored