Employ unit tests to get robust code quickly using JUnit.

Directly accessing a relational database from an object-oriented Java application can be inefficient and introduce problems. Moving to Persistence Frameworks may be the solution you need.

Discover how frameworks can afford substantial improvements in programmer productivity and enhance the quality, performance, reliability, and interoperability of different Java applications.

Do you love object-oriented programing but hate that you can't do a minor change in the program design without several updates to a large number of unrelated modules? You might want to look into aspect oriented programming.

Investigate three approaches to implementing a Queue class within Java.