Basic HTML version of Foils prepared Sept 23 97

Foil 33 Observer/Observable Model-II

From Tutorial on Scivis Java Visualization System Rome Lab CIV Review, NAVO Miss. Tutorial -- Sept 24-25 97. by Byeongseob Ki, Scott KLasky
Java provides the java.util.Observable and java.util.Observer interface for implementing the Observer/Observable model.
The Observable is the object of interest that provides information to a set of Observers.
Our server is an Observable class that receives message from each visualization window.
Each messages it receives is observed by all visualization windows.

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