I would like to write a servlet that dynamicaly modifies the HTML displayed
on the screen.  For example, I haven an HTML table displaying stock prices
that are generated by the servlet.  How can I make the price values change
whenever the servlet detects a change on the server side ?  Does anyone have an
example like that ?

I know I can do a "pull" solution and have an applet periodically queries
the latest value and update the screen.  But I would like a "push" solution
that initiates the change from the server side (only when new data is
available).

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