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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3.5. Input Elements and Tokens
The input characters and line terminators that result from escape processing (§3.3) and then input line recognition (§3.4) are reduced to a sequence of input elements.
Input: InputElementsopt SuboptInputElements: InputElement InputElements InputElementInputElement: WhiteSpace Comment TokenToken: Identifier Keyword Literal Separator OperatorSub: the ASCII SUB character, also known as “control-Z”
Those input elements that are not white space (§3.6) or comments (§3.7) are tokens. The tokens are the terminal symbols of the syntactic grammar (§2.3).
White space (§3.6) and comments (§3.7) can serve to separate tokens that, if adjacent, might be tokenized in another manner. For example, ...
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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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