December 2002
Intermediate to advanced
1050 pages
24h 49m
English
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The Concept of Scope
The term scope applies to the visibility of the programming elements within a program. This term is usually applied to the variables within the program. For Java, variables represent either primitive data types or object references. Java provides eight primitive data types: byte, char, short, int, long, float, double, and boolean. Everything else in the Java language is an object reference. Since object references can represent any valid Java class, there is a great deal of flexibility and extensibility in this process. Since for all effective purposes, a Java class is a data type, the Java language is type extensible—whatever data type is needed can be created as a class.
All Java references have some form of scope. For ...
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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.