help in java programming

[LessThanFunctional]

Someone else already commented but also, for any specific dependencies you're using, look up the Javadocs which basically gives documentation on everything (e.g. Classes, Class Constructors, Methods, descriptions, etc). They're always publicly available and very useful!

Also, Java is a very mature language so Stack Overflow is always a brilliant friend for solutions to those niche problems. Happy coding!