collision help please

Ok so I'm working on a small project, just a small pacman game. Like in normal pacman, you cant pass through the walls. In my world, I put boxes down to make the field for him to run around and i was wondering, what would be the simplest way to put in a collision detection without making the code really long? When done with the project, i will have up to, if not more than 150 boxes. That would be alot of if/else statements =P.

[x2495iiii]

Check this thread out for some helpful examples on how to do simple collision detection:

http://www.alice.org/community/showthread.php?t=4280