October 2014
Beginner
456 pages
8h 38m
English
Content preview from Beginning Programming with C++ For Dummies, 2nd Edition
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Chapter 4
Integer Expressions
In This Chapter
Declaring variables
Creating expressions
Unraveling compound expressions
Analyzing the assignment operator
Incrementing variables with the unary operator
In this chapter, get familiar with integer declarations and expressions. Ah, memories of algebra class. With any luck, it introduced you to the concepts of variables and expressions. The teacher would write something on the board like
x = 1
This equation defines a variable x and sets it equal to the value 1 until some subsequent statement changes that relationship for some reason. The term x becomes a replacement for 1. The teacher would then write the following expression:
y = 2x
Because I know that x is 1, I now know that y is equal to 2. This was a real breakthrough in the seventh grade. The good news is that all conventional computer languages follow this same pattern of creating and manipulating variables.
Declaring Variables
An integer variable declaration starts with the keyword ...
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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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