Not easier than other stuff, the languages you have done are very simple.

"Very simple" is terribly, terribly inaccurate. They're easier to learn than Java.

If you know all those languages pretty well than learning Java should be almost second nature. I say "almost" because Java is Object Oriented which you won't be used to, but it is a lot easier to read/write - imo at least. I've written programs in Python in probably 30 lines of code, and that same program written in Java is two or three different classes and probably 120+ lines of code lol. It's a different animal but definitely fun.

Python is a very beginner language, often the first taught in computer science. Nothing wrong with it, cross platform and very quick dev time. But with those lauages none are dealing with memory, and memory allocation pointers etc