Boolean Data Types

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

The Boolean Data Type is a data type that can be either one of these two values: true or false. The boolean data type was originally added to the C++ language by the ISO/ANSI(International Standards Organization/American National Standards Organization) committee in 1998. Type bool expressions are named after the English mathematician George Boole, who formulated rules for mathematical logic. Boolean expressions also end up with a value of either true or false. Boolean expressions are used in branching and looping statements. In programming, a boolean can be used with conditional statements (statements that only happen when the right condition is met).


Examples[change | change source]

An example of a boolean:

if (Boolean_Expression)

{

Yes_Statement_1

...

Yes_Statement_Last

}



else

{

No_Statement_1

...

No_Statement_Last

}


Boolean data types can also be used with other booleans inside of conditional statements using a conjunction operator. For example:

if (Boolean_Expression1 and Boolean_Expression2)

{

Yes_Statement_First

...

Yes_Statement_Last

}



else

{ 

No_Statement_First

...

No_Statement_Last

}


It can also be used with a disjunction operator:

if (Boolean_Expression1 or Boolean_Expression2)

{

Yes_Statement_First

...

Yes_Statement_Last

}