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Well, you can use, for example, this and this methods to convert your table model to other model. Perhaps, you might want to create a separate method for conversion.

And what is your question? How to invoke setmodel on a new model?

class Foo implements TableModel {
// Implement all the methods here
}

What's so difficult? Btw, I would recommend you to extend one of the default implementations of TableModel rather then...

You can explicitly override a class that implements TableModel. Or you can use anonymous classes.