Session Details

Week 5, Session 13 — Mon Apr 12

Reading

1. 8.1-8.3
   (14 pages)

HW Due

1. HW 12

Topics

1. Hand back and discuss Exam 1
2. Using a debugger
3. Indefinite (while) loops
4. Loop patterns

Outline

1. [10 min] Hand back and discuss exam
2. [14 min] Using the debugger in Eclipse:
   • What is debugging? a debugger?
   • Typical operations provided by a debugger
   • Exercise: use the debugger in Eclipse to find the two bugs in factorialTable.py from the 13-LoopPatterns project
3. [1 min] Running a module conditionally
4. [20 min] Indefinite loops
   • How they are different from definite loops
   • How they are implemented using a while loop
   • Exercise: use the debugger in Eclipse to find the bug in moneyDeposit.py from the 13-LoopPatterns project
   • Exercise (how to write a while loop): do the TODO's in findSine.py from the 13-LoopPatterns project
5. [5 min] Break
6. [30 min] Loop Patterns:
   • The compute-in-a-loop pattern in its various forms
   • The for loop pattern
   • The while loop pattern
   • Interactive loop
   • Sentinel loop using impossible values as the sentinel
   • Sentinel loop using no-input as the sentinel
   • The loop-and-a-half pattern
     • Combined with use of no-input as a sentinel
   • The file loop pattern
   • Nested loops (next session)
   • Wait-until-event loop (next session)
7. [25 min] Exercises on loop patterns, all from the 13-LoopPatterns project (finish for homework):
   • guessMyNumber.py
   • clickInsideCircle.py
   • listMax.py

Resources

1. Slides: Debugging, indefinite (while) loops, and loop patterns

HW Assigned

1. HW 13