September 2016
Intermediate to advanced
704 pages
18h 29m
English
Content preview from OCA Java SE 8 Programmer I Certification Guide
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Chapter 6. Working with inheritance
|
Exam objectives covered in this chapter |
What you need to know |
|---|---|
| [7.1] Describe inheritance and its benefits. | The need for inheriting classes. How to implement inheritance using classes. |
| [7.2] Develop code that demonstrates the use of polymorphism; including overriding and object type versus reference type. | How to implement polymorphism with classes and interfaces. How to define polymorphic or overridden methods. How to determine the valid types of the variables that can be used to refer to an object. How to determine the differences in the members of an object, which ones are accessible, and when an object is referred to using a variable of an inherited base class or an implemented interface. ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.