June 2018
Beginner
722 pages
18h 47m
English
Content preview from Introduction to Programming
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What is daemon?
The word daemon has an ancient Greek origin, meaning a divinity or supernatural being of a nature between gods and humans and an inner or attendant spirit or inspiring force. But in computer science, this term has more mundane usage and is applied to a computer program that runs as a background process, rather than being under the direct control of an interactive user. That is why there are two types of threads in Java:
- User thread (default), initiated by an application (the main thread is one such example)
- Daemon threads that work in the background in support of user thread activity (garbage collection is an example of a daemon thread)
That is why all daemon threads exit immediately after the last user thread exits or is ...
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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.