Variables are containers for storing data values.
In C++, there are different types of variables (defined with different keywords), for example:
int- stores integers (whole numbers), without decimals, such as 123 or -123double- stores floating point numbers, with decimals, such as 19.99 or -19.99char- stores single characters, such as 'a' or 'B'. Char values are surrounded by single quotesstring- stores text, such as "Hello World". String values are surrounded by double quotesbool- stores values with two states: true or false
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