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Learn How To Use Booleans In C++

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In programming, there are some of the parameters which have two values, as same as 0 and 1 bits in our computers. For these 1 and 0; Yes and No, On and Off, true and false, Enabled or Disabled, etc.. variables there are Boolean operands. We use Booleans, these kinds of switches to check most of the parameters, components, variables in classes, etc. bool data type is used C++ for these variables and it can take the values 1 (true) or 0 (false

Here is an example to use Booleans;

Boolean expressions are used in comparison and it is a C++ expression that returns a boolean value 1 (true) or 0 (false). We can check a boolean variable if it is true or false like this,

We can use comparison operators with if clauses, such as the equal to (==) operator to find out if an expression (or a variable) is true, also that means they are equal.

Here a==b term is a Boolean and return true or false, if clause checks if it is true or false and if it is true that means it is equal to. Same here, we can use greater than or lower than as below,


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About author

33+ years of coding with more than 30+ programming languages, mostly C++ on Windows, Android, Mac-OS, iOS, Linux and some other operating systems. Dr. Yilmaz Yoru was born in 1974, Eskisehir-Turkey. He graduated from the department of Mechanical Engineering of Eskisehir Osmangazi University in 1997. One year later he started to work in the same university as an assistant. He received his MSc and PhD degrees from the same department of the same university. He has married and he is a father of a son. Some of his interests are Programming, Thermodynamics, Fluid Mechanics and Artificial Intelligence. He also likes the graphical 2D & 3D design and high-end innovations.
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