Where to start? Which library should i use?

Hi all,

First of all, im new in this forum and im almost new in java programming enviroment (I studied Java 3 years ago but I main PHP nowadays).

I decided to start a new project in Java (the most difficult part will be syntaxis, I know all about OOP etc) and I want to make a game, at least, a simple game.

So I googled and i found some libraries to work with graphics (make games) in Java and I was wondering which is the best for me, or better, which should I use. In addittion, I expect to make my game in 2D (maybe a card game or something like that).

Finally, I would like to try make something online, but this will be another independet library I think.

Thanks in advance guys and nice to meet you all!

PS. Sorry for my English, still improving it!