Lecture notes - April 15

• Questions?

• Go over homework.
  • color change 13.10.3 (page 272 #3)
    What color should the background be?
  • same with simple input validation; it complains if text isn't 6 characters.
    What color should the background be now?
• Loops - chapter 15
  • "for" loop and counters
  • shortcut operators: i++ , i--
  • "while" loops
  • example: validating user input with "while" until they get it right.
  • flowchart diagrams
  • nested loops , especially for tables

• Examples
  • Counting by 7's :
    

  • A table of blue green colors :
    

• for Thursday: please read chapters 15, 16, and
  see the class homepage for the written assignment due next Tuesday.