Boolean Operations Flashcards

All 6 cards in this deck

Name the three common Boolean operators.

AND, OR and NOT.

When is a condition joined by AND true?

Only when both conditions are true.

When is a condition joined by OR true?

When at least one of the conditions is true.

What does the Boolean operator NOT do?

e.g. NOT (age > 18)

Reverses the result of a condition.
NOT (age > 18) is true when age is 18 or less.

How do you write a selection statement that runs only when two conditions are both met?

e.g. age is at least 13 and member is True

Join the two conditions with AND:
IF age ≥ 13 AND member = True THEN
…
ENDIF

In what order are the Boolean operators evaluated in a condition?

Brackets first, then NOT, then AND, then OR.