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devdaily.com directory : Java : Articles and Tutorials : Design Patterns

Directory : Java : Articles and Tutorials : Design Patterns : Page 2

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Take Command of your Software - David Geary explores how to use the Command pattern both in client-side Java to attach application-specific behavior to Swing menu items and in server-side Java to implement application-specific behavior with the Apache Struts application framework.

Take Control with the Proxy Design Pattern - The Proxy design pattern substitutes a proxy for an object, making your apps more efficient.

The Dangling Composite Bug Pattern - Squash one of the most common causes of the null-pointer exception.

The Null Flag Bug Pattern - Avoid using null pointers as flags for exceptions.

The trick to "Iterator Observers" - Factor out common code and make your Iterators observable.

Web Application Components made easy with Composite View - Implement Web applications featuring pluggable components with the Composite View design pattern.

When is a Singleton not a Singleton? - Avoid multiple singleton instances by keeping these tips in mind.