August 2003
Intermediate to advanced
672 pages
16h 23m
English
book
Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition
by Khalid A. Mughal, Rolf W. Rasmussen
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5.10. Assertions
Assertions in Java can be used to document and validate assumptions made about the state of the program at designated locations in the code. Each assertion contains a boolean expression that is expected to be true when the assertion is executed. If this assumption is false, the system throws a special assertion error. The assertion facility uses the exception handling mechanism to propagate the error. The assertion facility can be enabled or disabled at runtime.
The assertion facility is an invaluable aid in implementing correct programs (i.e., programs that adhere to their specification). It should not be confused with the exception handling mechanism that aids in developing robust programs (i.e., programs that handle unexpected ...
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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.