Hey guys im trying to build on my game by adding a collectible system like where you go around and collect items in a area now i am a noob at dev terms but i ma try to explain my set up i have 4 classes one for all props and models one for character one for lighting and one for particle effects. i use java right now for scripting . know im way over my head im at a point in developing a game that i havent crossed before cause i always enjoy designing so programming is not my strong thing i have very simple understanding of it so help would be much thanked and if you know of any asset packs or deals that offer this i would love if you would forward to me thnx plz help.

Hey. First of all, can you tell us what you are using besides Java? Did you use a framework or a special game engine?
What kind of working system do you have now?

If we had a little more information we might be able to help you a little better. But besides that: In general you could make a class CollectibleItem (with several subclasses if needed) and make those objects in the world. Then you can program ways to interact with those items.

i use unity as my game engine

Do you mean something like an inventory system? Or do want something where the player has to collect certain items before moving to the next area? Either way, you should probably make a class for those collectible items, and then make a list, or something similar, to store/keep track of what the player has collected. I wouldn't recommend getting an asset bundle, though. It wouldn't be exactly what you want for your game, and you might end up spending way more time trying to get to fit than you would had you just made it yourself.
By the way, in Unity it's actually Javascript, not Java (which is a completely different language). But I make that mistake sometimes, so it's ok

im kinda going for a system that keeps track ass well as u need to get it to go to the next area like in my game it will be laptops and when u pick up collectable i want you go to a gui page and read a passage kinda a way to tell a story you know what i mean and what would you recommend for me to start programming this cause i am a programming noob

No offense, but it seems like you're in over your head. Maybe you should try something more simple for a start? Because honestly, a "programming noob" should not be making 3D games...
Also please try to be a little more informative in the future and at least use simple punctuation in your posts.

Ya, I would agree. A "programming noob" should definitely start with something less advanced than something like an inventory system. The first time I tried to make something that complex, I failed miserably because I didn't know what I was doing. But there are plenty of tutorials and lots of good documentation and an entire community around unity. If I were you, I would google search for some good tutorials for unity (this guy has some good videos, and the demo projects are a good source of knowledge as well), read up on the reference docs, and maybe just read up on some basic programming skills.
I know you said you aren't exactly programming inclined, but if you want to turn those great ideas you have into real, actual games, then you'll have to learn these skills eventually. It's not as hard as it sounds if you put the work in. But that's the best advice I can offer you, because no one is going to program your game for you, otherwise it wouldn't be your game and you'd never get to feel the sense of accomplishment when you actually realize that you can do it if you put your mind to it. Best of luck!

hey thanks for advice my game is visual based game right not to much programming or hard so i was able to do it i looked at what u said to look at i think it will help alot and make my project better since ill be able to program further thnx i dint mean it in copying guys work but teaching me how to further program mine and learn .