Chain of Responsibility decouples the sender of a request from the receiver by allowing one or many handler objects to handle the request. The Chain of Responsibility Pattern is a common ...

Recently I wrote two Java programs (for Microsoft Windows OS) that must catch global keyboard events generated by other applications concurrently running on the same desktop. Microsoft provides a way ...

Get an overview of design patterns, then use what you've learned to evaluate whether the Composite pattern is a good choice for a particular Java use case Numerous strategies have been devised to ...