1. Intro to Programming Logic and Design CIS 115 Brought to you by: done by Angela Robinson for CSC 289

2. Table of Contents:  Repetitive Statements  Count Controlled Count Controlled  For Loop For Loop  Condition Controlled Condition Controlled  While Loop While Loop  Do-While Loop Do-While Loop  Do-Until Loop Do-Until Loop  Summary Review Summary Review done by Angela Robinson for CSC 289

3. Count Controlled You know exactly how many done by Angela Robinson for CSC 289 Table of Contents

4. done by Angela Robinson for CSC 289 Table of Contents Counter Variable 1. Initialize 2. Test 3. Increment/ decrement

5. For Loop done by Angela Robinson for CSC 289 Table of Contents For counter = min to max statement Etc. End For

6. Examples Set squeeze = 0 For second 0 to 3 set squeeze = 1; End For Set squeeze = 0 done by Angela Robinson for CSC 289 Table of Contents

7. done by Angela Robinson for CSC 289 Flow Chart Raptor

8. Condition Controlled When you don’t know how long done by Angela Robinson for CSC 289 Table of Contents

9. True Or False done by Angela Robinson for CSC 289 Boolean Expression One way or the other Table of Contents

10. Sentinels A special value that marks the end of a list of values done by Angela Robinson for CSC 289 Table of Contents

11. Three kinds done by Angela Robinson for CSC 289 Table of Contents  While  Do-While  Do-Until

12. While Loop Do after checking done by Angela Robinson for CSC 289 Table of Contents

13. Pre-Test done by Angela Robinson for CSC 289 Table of Contents May not run at all While condition Then Statement Etc. End While

14. Examples While hover = "on" For second 0 to 3 set squeeze = 1 End For set squeeze = 0 set hover = "off" End While done by Angela Robinson for CSC 289 Table of Contents

15. done by Angela Robinson for CSC 289 Flow Chart Raptor

16. Do-While Loop Do before checking done by Angela Robinson for CSC 289 Table of Contents

17. Post-Test done by Angela Robinson for CSC 289 Table of Contents Runs at least once DO Statement Etc. While condition

18. Examples Do For second 0 to 3 set squeeze = 1 End For set squeeze = 0 set hover = "off" While hover = "on" done by Angela Robinson for CSC 289 Table of Contents

19. done by Angela Robinson for CSC 289 Flow Chart Raptor

20. Do-Until Loop Do before checking done by Angela Robinson for CSC 289 Table of Contents

21. Post-Test done by Angela Robinson for CSC 289 Table of Contents Runs at least once DO Statement Etc. Until condition

22. Examples Do For second 0 to 3 set squeeze = 1 End For set squeeze = 0 set hover = "off" Until hover = “off" done by Angela Robinson for CSC 289 Table of Contents

23. done by Angela Robinson for CSC 289 Flow Chart Raptor

24. Nested Statements The Matryoska dolls of programming done by Angela Robinson for CSC 289 Table of Contents

25. Infinite Loops The Energizer bunny of programs done by Angela Robinson for CSC 289 Table of Contents

26. Don’t Forget to change the status done by Angela Robinson for CSC 289  Too much work Table of Contents

27. Comments What are you doing? done by Angela Robinson for CSC 289 Table of Contents

28. Isn’t it obvious? Table of Contents

29. How to comment  Single Line //this is a comment  Multi-Line /* this is a *Multiline comment */ done by Angela Robinson for CSC 289 Table of Contents

30. Examples Do For second 0 to 3 set squeeze = 1//turn squeeze on End For set squeeze = 0 //turn squeeze off set hover = "off" Until hover = “off" done by Angela Robinson for CSC 289 Table of Contents

31. Lets Review A summary of what we have learned here done by Angela Robinson for CSC 289 Table of Contents

32. What is a Repetitive Statement? A statement that tells the program what to do until a condition is true or false. done by Angela Robinson for CSC 289 Table of Contents

33. What are the four repetitive statements?  For Loop  While Loop  Do-While Loop  Do-Until Loop done by Angela Robinson for CSC 289 Table of Contents

34. What is a sentinel? A special value that marks the end of a list of values done by Angela Robinson for CSC 289 Table of Contents

35. How do you make sure you don’t get an infinite loop? By changing the status of the condition. done by Angela Robinson for CSC 289 Table of Contents

36. How do you make a comment? //this is a single-line comment /* this is a *multi-line comment */ done by Angela Robinson for CSC 289 Table of Contents

37. Resources  Clip art provided by either Microsoft or Click Art 400K of Borderbund  Starting out with Programming logic & Design, second edition by Tony Gaddis  Raptor Flowcharting Tool  Video recorded with Cam Studio (www.camstudio.org)www.camstudio.org  Video edited with Adobe Premiere (www.adobe.com)www.adobe.com done by Angela Robinson for CSC 289 Table of Contents