I see, more and more often, questions from people that (finally) migrate from C/S to Web Forms versions, and don't know how to display charts (feature that is no longer available in Web version).
Of course, the first point is to use the Oracle official FormsGraph Java Bean.
Another solution, that does not require lot of code, is to use the Google Chart tools. It is easy as sending an HTTP Url that
returns a PNG image of the desired chart ;-)
However, this solution requires an image item that can be populated from an Internet URL.
The Forms Look and Feel project can do it, but is a little bit heavy for those who only want to display charts, and nothing more.
So that, the Handle Image Java Beans are the right solution.
Good charts !