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  • Book Overview & Buying OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808
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OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808

OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808

By : Jeanne Boyarsky, Scott Selikoff
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OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808

OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808

By: Jeanne Boyarsky, Scott Selikoff

Overview of this book

OCA, Oracle Certified Associate Java SE 8 Programmer I Study Guide, Exam 1Z0-808 is a comprehensive study guide for those taking the Oracle Certified Associate Java SE 8 Programmer I exam (1Z0-808). With complete coverage of 100% of the exam objectives, this book provides everything you need to know to confidently take the exam. The release of Java 8 brought the language’s biggest changes to date, and for the first time, candidates are required to learn functional programming to pass the exam. This study guide has you covered, with thorough functional programming explanation and information on all key topic areas Java programmers need to know. You’ll cover Java inside and out and learn how to apply it efficiently and effectively to create solutions applicable to real-world scenarios.
Table of Contents (18 chapters)
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1
Title Page
2
Copyright
3
Publisher's Note
4
Dedication
5
Acknowledgments
6
About the Authors
15
Free Online Learning Environment
16
End User License Agreement

Chapter 5
Class Design

OCA exam objectives covered in this chapter:

  • correct Working with Inheritance
    • Describe inheritance and its benefits
    • Develop code that demonstrates the use of polymorphism; including overriding and object type versus reference type
    • Determine when casting is necessary
    • Use super and this to access objects and constructors
    • Use abstract classes and interfaces

In Chapter 1, “Java Building Blocks,” we introduced the basic definition for a class in Java. In Chapter 4, “Methods and Encapsulation,” we delved into constructors, methods, and modifiers, and showed how you can use them to build more structured classes. In this chapter, we'll take things one step further and show how class structure is one of the most powerful features in the Java language.

At its core, proper Java class design is about code reusability, increased functionality, and standardization. For example, by creating a new class that extends an existing class, you may gain...

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OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808
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