revised 10/01/98; 12/09/99; 01/20/00

CHAPTER 14 --- Boolean Expressions

The if statements of the previous chapters asked simple questions, like 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
  • Checking that a number is in range.
  • Syntax of Logical Expressions.
  • OR Operator
  • Comparison between AND and OR.
  • NOT Operator.

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?

Click Here after you have answered the question