April 2017
Beginner
504 pages
14h 11m
English
Content preview from Java 9 Programming By Example
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Synchronized block
Declaring variables are not the only tool to ensure the consistency between threads. There are other tools in the Java language and one of them is the synchronized block. The synchronized keyword is part of the language and it can be used in front of a method or a program block inside a method.
Every object in the Java program has a monitor that can be locked and unlocked by any running thread. When a thread locks a monitor, it is said that that thread holds the lock, and no two threads can hold the lock of a monitor at a time. If a thread tries to lock a monitor that is already locked, it gets BLOCKED until the monitor is released. A synchronized block starts with the synchronized keyword, and then an object instance specified ...
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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.