主要讨论了：
    Design patterns are proven techniques for implementing robust, malleable, reusable, and extensible object-oriented software. To launch his Java Design Patterns column, David Geary introduces design patterns to Java developers and explores Strategy, Composite, and Decorator -- three common, yet powerful, design patterns employed throughout the JDK. (2,500 words; October 12, 2001)


见：http://www.javaworld.com/javawor ... designpatterns.html