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 2. Working with Java data types
|
Exam objectives covered in this chapter |
What you need to know |
|---|---|
| [2.2] Differentiate between object reference variables and primitive variables. | The primitive data types in Java, including scenarios when a particular primitive data type should or can’t be used. Similarities and differences between the primitive data types. Similarities and differences between primitive and object reference variables. |
| [2.1] Declare and initialize variables (including casting of primitive data types). | Declaration and initialization of primitives and object reference variables. Literal values for primitive and object reference variables. |
| [2.5] Develop code that uses wrapper classes such as Boolean, Double, ... |
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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.
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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.