Simple Visualization library in Java to display data

Question

I am looking for a good visualization library in Java for my school project in data mining.

So, my primary focus will be on data mining and I just need a simple API which takes in the output of my algo (xml, csv etc, not yet decided) and give cool looking analytic like view of the data.

So, I need a simple library which just works.

I liked prefuse.org, but will be be an overkill and time consuming? The app might be a web based or a java swing app (what ever is easy and quick to build).

UPDATE

Large-scale RDF Graph Visualization Tools

Answer 1

If you can convert the output into graphviz dot format (graphviz) than you can use idot incremental viewer (iDot_incremental_viewer) which uses prefuse behind the scenes and it's completely free. The only thing you need to do here is to convert the output in simple dot file. Rest will be taken care of incremental viewer.

Answer 2

you may take a look at Processing. there are also a lot of nice examples in openprocessing.org. There used to be a sister website called openvisualizations but it does not seem to exist anymore.