Patterns Section Index | Page 3

Which patterns were used by Sun in designing the Enterprise JavaBeans model?

Do any other major design patterns exist besides the ones described in the GoF book?

What's an example application of the Command design pattern?

When would I use the delegation pattern instead of inheritence to extend a class's behavior?

How can I make sure at most one instance of my class is ever created?

What major patterns do the Java APIs utilize?

What mailing lists are available about patterns?

Calendar is an abstract class. The getInstance() method tries to instantiate GregorianCalendar() i.e., parent instantiating a derived class. This looks Non-OO? Ex: Calendar a=Calendar.getInstance(); Can somebody explain why is it so?

What is an example of a design pattern?

Where can I learn more about design patterns?

How do I document a design pattern?

Why is the study of patterns important?

What is a software design pattern?