What java applet does Facebook use to upload images?

I am trying to write a Ja开发者_如何转开发va image uploader, but I want to "Browse Files" with preview. Best way for me (and my boss) is .. to open default (windows|*) "Browse Files" window, but I can't.

I have a few solutions, first is the JFileChooser (which is very ugly). Can you give me some ideas, to realize this thing?

PP As here, or Facebook image upload?

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Just make use of the normal <input type="file">. Facebook does not use a Java applet. You can also try using jQuery(has some good UI),thats if you are interested in getting involved with Javascript.