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C++ Boolean Data Types

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Boolean Types

A boolean data type is declared with the bool keyword and can only take the values true or false.

When the value is returned, true = 1 and false = 0.

Example

bool isCodingFun = true;
bool isFishTasty = false;
cout << isCodingFun;  // Outputs 1 (true)
cout << isFishTasty;  // Outputs 0 (false)
Try it Yourself »

Boolean values are mostly used for conditional testing, which you will learn more about in a later chapter.

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