how to create your own game engine with java

It would be difficult to make a pc game people would buy within that time frame, and while a mobile or browser game might work, unless you have an already existing fanbase or are extremely lucky you will probably not make enough to even pay for the export modules. If you're hoping to actually make money with 3-4 weeks of work through, you should look elsewhere. Given 3-4 weeks of full work days you could probably figure out how to use the software properly and make a decent basic game, such as an infinite runner. You might have a little trouble getting used to all the stuff gamemaker handles for you, and stuff that's done thrrough ui options rather than in code, although you can do almost everything through code. GML is an extremely forgiving language with lax syntax which makes it easy to learn. I have a little exerience in java (I took an object oriented programing class in it last year) and while you can't use java to code in this, you should be able to pick up GML, the programing language this uses, very quickly.

How to create your own game engine with java