JFreeChart does not show the graph at every iteration on thread?

Question

I am getting counter values in one class using a thread and writing JFreeChart in another thread. While executing, it works alternatively, but only shows the graph

Answer 1

Don't sleep on the event dispatch thread (EDT). As shown in Concurrency in Swing, use a worker thread to update the dataset on the EDT in process(). A complete example is shown here.