revised: 10/01/98, 12/09/99, 01/20/00, 01/14/06, 06/04/06

# CHAPTER 14 — Boolean Expressions

The `if`

statements of the previous
chapters asked 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 the AP Computer Science Test.

### QUESTION 1:

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

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

Can you bake cookies with the supplies that you have?