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C++ Primer Plus, Fourth Edition
book

C++ Primer Plus, Fourth Edition

by Stephen Prata
November 2001
Beginner content levelBeginner
1128 pages
29h 12m
English
Sams
Content preview from C++ Primer Plus, Fourth Edition

Simple Variables

Programs typically need to store information—perhaps the current price of IBM stock, the average humidity in New York City in August, the most common letter in the Constitution and its relative frequency, or the number of available Elvis imitators. To store an item of information in a computer, the program must keep track of three fundamental properties:

  • Where the information is stored

  • What value is kept there

  • What kind of information is stored

The strategy the examples have been using so far is to declare a variable. The type used in the declaration describes the kind of information, and the variable name represents the value symbolically. For example, suppose Chief Lab Assistant Igor uses the following statements:

 int braincount; ...
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Publisher Resources

ISBN: 0672322234Purchase book