Your company decides to build or migrate from existing two-tier applications to an n-tier J2EE solution. The targeted application needs to have characteristics of modularity, reusability, ...

We discuss some of the most common design patterns in Java and how they can help you solve common coding issues. Learn more. A design pattern is a well-established and documented solution to a common ...

Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...