I would like to learn Java please

Learn programming, really in any language. Ideally take a programming languages course which will expose you to many different languages and explain the concepts and theories behind the way languages are developed. Once you've truly learned programming you won't have any problems picking up a language. I can learn a new language in a trivial amount of time, the trick is learning all of the libraries and tools that are available for a given language.

Now why do you want to learn java unless you're doing android development? It's slow and highly unoptimized.

I studied c programming at college for a semester, what would you guys recommend me, java or c++ or maybe some other programing language, i wanna try object programming for fun. Im not sure if its relevant, but i have a little experience with delphi but not much though, i can make a calculator :P

Udacity has free course Introduction to Programming with Java https://www.udacity.com/course/cs046

This is the series I used to learn various programming languages alone. These greatly helped me get good grades at university for programming homework and projects. :)

Wow, a lot of link, here's another one: oracle tutorial.

I recommend this

Well it would be important to know what programming knowledge you already have.
Java is a great language to start with, and most high schools and universities seem to use it to start people off with it. But it is also just the best mainstream language out there. Some people like C++, if you have you programmed in many language it is quite obvious how critically flawed C++ is. And most of the really good modern languages are based off of Java, or based off of a language very similar to Java. The great thing about learning Java is it has to be the most generic language out there. It does not doing thing crazy, different, or unique, and all the syntax within it is consistent.

If you do not have experience with a fully functioning and overly complicated IDE, like Eclipse, I recommend "Ready to Program with Java". It is a great extremely simple IDE that does everything you need it to do, with 0 time needed to learn it (and its text formatting is great).

It is hard to say where to start actually learning the language. If you knew much about programming you probably would not be asking this, as a basic programmer skill is the ability to quickly learn new languages. I guess it depends on your situation and exact ability in programming. I rather like full immersion learning: Read a short tutorial to get some of the very basics out of the way. Then run headlong into a project, and not necessarily a simple easy tutorial project. Yes you will be consulting the internet for every single like for like the first 50 lines, but you will be learning as you go. But this might not work for you.