L2J Server

Hello everyone, I have a question. I want to build my future with programming. So I am interested if there is a big difference if I would be learning different language and then switch for ant another programming language.For example.: now I would be learning JAVA for my personal expierence. And later if I get a job like c++ programmer, would I have to learn many things different , or the expirience from JAVA that i got would help me.

Java is simplified C++ with some additions of its own (namely the large codebase, in C++ if you don't use some 3rd party libs you are somewhat limited and have to write lots of code from scratch (and by that I mean the utility stuff, the common code that you use in almost every program)).
If you start with Java and switch to C++ later, you'll have to learn lots of stuff, but if you switch from C++ to Java you'll have to throw away some habits and simply adapt to Java syntax and learn some small (ok, sometimes not so small) differences.
Also, in this summer, C++0x is planned for release, that stuff is said to be REALLY good, so IMHO learning C++ beforehand would be a good choice.

Thank you for taking your time and answering my question. I think for now I will try to understand java programming by creating l2jservers cauze it's somehow fun. I am at school learning pascal and got almost trought all learning program only 1 thing left. And I think I will try to get bit more into pascal until summer. Then when summer comes as you said the new C++X0 release comes I will try to learn c++ in my free time.