February 2013
Intermediate to advanced
672 pages
16h 2m
English
book
The Java® Language Specification, Java SE 7 Edition, Fourth Edition
by James Gosling, Bill Joy, Guy Steele, Gilad Bracha, Alex Buckley
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4.12. Variables
A variable is a storage location and has an associated type, sometimes called its compile-time type, that is either a primitive type (§4.2) or a reference type (§4.3).
A variable’s value is changed by an assignment (§15.26) or by a prefix or postfix + + (increment) or -- (decrement) operator (§15.14.2, §15.14.3, §15.15.1, §15.15.2).
Compatibility of the value of a variable with its type is guaranteed by the design of the Java programming language, as long as a program does not give rise to compile-time unchecked warnings (§4.12.2). Default values (§4.12.5) are compatible and all assignments to a variable are checked for assignment compatibility (§5.2), usually at compile time, but, in a single case involving arrays, a run-time ...
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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.