C++ TutorialLesson 7Free preview

C++ Variables

This lesson is part of C++ · All levels

Summary

This lesson discusses variables as the data naming containers in memory. You learn how to declare variables with the right kind of data, give them a starting value, and change them back as the program runs. The rules of proper naming are also discussed so that the code is free of syntax errors.

Key points

The variable must be declared with the data type before use.
Name rule: under-scoring, no spaces, and no keywords.
The value of the variable can be changed during the program's run.
Examples of basic data types: int, float, char, string, bool.

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