Week 4 - Decisions

and is your number greater than 5 and less than 10

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Unformatted text preview: pressions Is this ball red AND round? Is this ball red AND round? 17 Pick a number between 1 and 10... •  AND –  Both must be true –  Example: •  Is your number greater than 5 AND less than 10? •  OR –  Either may be true –  Example: •  Is your number 5 OR 10? 18 Syntax: and or •  AND (expression1) && (expression2) –  Both expression1 AND expression2 must be true for the whole to be true •  OR (expression1) || (expression2) –  Either expression1 OR expression2 may be true for the whole to be true 19 Pick a number between 1 and 10... •  AND –  Is your number greater than 5 AND less than 10? (number > 5) && (number < 10) •  OR –  Is your number 5 OR 10? (number == 5) || (number == 10) 20 Lets write some expressions… Pick a number between 1 and 10… •  Is your number between 3 and 7? •  Is your number smaller than 5? •  Is your number odd? 21 Lets write some expressions… Pick a number between 1 and 10… •  Is your number between 3 and 7? (number > 3) && (number < 7) •  Is your number smaller than 5? number < 5 •  Is your number odd? (number % 2) != 0 22 Syntax: not •  A boolean expression can be negated using the "not" (!) operator •  Syntax !(condition) •  Examples !(num >= 0) (a || b) && !(a && b) 23 How to avoid using not What is the equivalent expression of the following: •  !(number < 5) •  !(number >...
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This note was uploaded on 02/17/2014 for the course ITP 109 taught by Professor Trinagregory during the Spring '12 term at USC.

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