Book Image

Oracle Certified Associate, Java SE 7 Programmer Study Guide

By : Richard M. Reese
Book Image

Oracle Certified Associate, Java SE 7 Programmer Study Guide

By: Richard M. Reese

Overview of this book

<p>Java SE 7 Associate Programmer certification adds to your qualification as a Java developer. Knowledge of Java is important, but knowing how to write an efficient and productive code adds to your skills and gives you an edge when you are planning to give the certification exam. Coverage of the objectives goes beyond a simple review of certification objectives.</p> <p>"Oracle Certified Associate, Java SE 7 Programmer Study Guide" addresses certification exam objectives and provides discussion and examples to show the best ways of applying Java language features in real world programming. You will gain in-depth understanding of Java by examining how objects are allocated in the heap and how methods are managed in the program stack.<br /><br />"Oracle Certified Associate, Java SE 7 Programmer Study Guide" covers all of the Java SE 7 Associate Programmer certification objectives. It starts with a high level overview of an application’s structure to provide a framework for subsequent chapters. Chapters are organized around common themes with emphasis on memory usage. You will get an in-depth and complete understanding of the run-time Java environment using the illustrations that show the impact of class and method usage on the program stack and heap. <br /><br />Augmenting the coverage of certification objectives are examples of how you can use the classes, methods, and techniques in a productive and sound manner. In addition, sample exam questions are given in each chapter.</p>
Table of Contents (16 chapters)
Oracle Certified Associate, Java SE 7 Programmer Study Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Summary


In this chapter we have re-examined the overall structure of a Java application. We examined the use of the import and package statements and discussed the relationship between a package library and its supporting directory/file underpinnings. We learned how to use the asterisk wildcard with the import statement. In addition, we saw the use of the static import statement.

We discussed the use of the initializer list and how garbage collection works in Java. This process results in the automatic recovery of objects once they are no longer needed.

The support provided for internationalization was explored starting with the Locale class and then with resource bundles. Both, property resource bundles and the ListResourceBundle class were covered. We learned how inheritance works with property resource bundles when organized using a consistent naming convention.

Finally, we covered the use of JDBC. We saw how a driver is needed to establish a connection to a database and how to use the Statement...