CHAPTER 14 — Boolean Expressions

The if statements of the previous chapters ask simple questions such as count<10. Often simple questions are not enough. This chapter discusses ways to ask more complicated questions.

Chapter Topics:

Relational Operators (review)
Logical Operators
AND Operator
How to check that a number is in range
Boolean Expressions
OR Operator
Comparison between AND and OR
NOT Operator

Questions involving boolean expressions have been prominent on past AP Computer Science Tests.

QUESTION 1:

You have decided to bake some cookies (much cheaper than buying them at the Mall).

An interesting cookie recipe calls for 4 cups of flour and 2 cups of sugar. You look in your pantry and find 3 cups of flour and 2 cups of sugar.

Can you bake cookies with what you have?