Pascal - Logical and: and

Logical and works as follows: just in case it's true if both inputs are true in all other situations the result is false. In next table you can find all possibilities:

a	b	x
False	False	False
False	True	False
True	False	False
True	True	True

information about the table: a, b are inputs, x is result

and

Description

par1 and par2

Used keywords: and

Input

par1 - Logical value
par2 - Logical value

Output

Result - Logical value

If the first operand is false, then the second operand is not evaluated.

Compatible programing languages:
Object Pascal | Free Pascal

Examples

Pascal

In the source code you can find the equivalent of the above table, for easier orientation at the end of each line is a comment which shows the result.

a1 := false and false; { a1 = false}
a2 := false and true; { a2 = false}
a3 := true and false; { a3 = false}
a4 := true and true;  { a4 = true}

Pascal

Even one example in what situations we can use the operation logical and:

a and b
a and true
10 >a and a>5

Pascal

Other pieces of example codes:

a and b

not b and true

b2:= x and y;

You can find it in the following collections: logical operators

Logical and in another programming language:

Differences to: