3.2 The Type boolean
He who would distinguish the true from the false must have an adequate idea of what is true and false.
—BENEDICT SPINOZA, Ethics
Truth is truth
To the end of reckoning.
—WILLIAM SHAKESPEARE, Measure for Measure
The type boolean is a primitive type, just like the types int, double, and char. As with these other types, you can have values of type boolean, constants of type boolean, variables of type boolean, and expressions of type boolean. However, the type boolean specifies only two values: true and false. You can use the two values true and false in a program, just as you use numeric constants, such as 2 and 3.45, and character constants, such as ‘A’.
Boolean Variables
Boolean variables can be used, among other things, ...
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