August 2020
Intermediate to advanced
1296 pages
30h 50m
English
book
OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide
by Jeanne Boyarsky, Scott Selikoff
Content preview from OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide
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Chapter 2Java Building Blocks
OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER:
- Working With Java Primitive Data Types and String APIs
- Declare and initialize variables (including casting and promoting primitive data types)
- Identify the scope of variables
- Use local variable type inference
- Describing and Using Objects and Classes
- Declare and instantiate Java objects, and explain objects’ lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Read or write to object fields
As the old saying goes, you have to learn how to walk before you can run. Likewise, you have to learn the basics of Java before you can build complex programs. In this chapter, we’ll be presenting the basic structure of Java classes, variables, ...
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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.