C# or Java ? Which language should i learn ?

Hi guys, i want to learn an oriented-object language and i don't know which i must choose : Java or C# ?

I know some basics rules about programming, i have made many cli-programs in C and some for my calculator in Ti-Basic.

I think with Java i can, at long term, develop on Android systems and i think it's the future platform of programming but...

With C# and .NET maybe i can make native software for Windows and Windows Phone, and the future marketplace on Windows can be good. But maybe the Windows/Xbox family is on decline and near to the end ?

So i don't know which choose, if you can give me some advices, it will be great. Thank you.

PS : Sorry for my bad english language. I hope you will understand what i want to say.

>>9
I disagree. I do think it's overused pretty massively - most applications don't make good use of it and can be written purely in a functional/imperative language. But for certain things, it is a useful paradigm to have. It effectively simulates multiple computers interacting with one another!