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 18Concurrency
OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER:
- Concurrency
- Create worker threads using Runnable, Callable and use an ExecutorService to concurrently execute tasks
- Use java.util.concurrent collections and classes including CyclicBarrier and CopyOnWriteArrayList
- Write thread‐safe code
- Identify threading problems such as deadlocks and livelocks
- Parallel Streams
- Develop code that uses parallel streams
- Implement decomposition and reduction with streams
As you will learn in Chapter 19, “I/O,” Chapter 20 “NIO.2,” and Chapter 21, “JDBC,” computers are capable of reading and writing data to external resources. Unfortunately, as compared to CPU operations, these disk/network operations tend to be extremely slow—so slow, ...
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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.