October 2011
Beginner to intermediate
1200 pages
35h 33m
English
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Just a Moment—Building a Time-Delay Loop
Sometimes it’s useful to build a time delay into a program. For example, you might have encountered programs that flash a message onscreen and then go on to something else before you can read the message. You end up being afraid that you’ve missed irretrievable information of vital importance. It would be much nicer if the program paused 5 seconds before moving on. The while loop is handy for producing this effect. A technique from the early days of personal computers was to make the computer count for a while to use up time:
long wait = 0;while (wait < 10000) wait++; // counting silently
The problem with this approach is that you have to change the counting limit when you change computer ...
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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.