Programming 4kids
1) introduces Timers, and
2) debugs problems in another List example program.
The first challenge introduces Timers with a simple game that needs to end in 5 seconds. Timers are like a clock with values increasing in tenths of a second. They are very handy for determining changes in time.
The last challenge purposely encounters and creates several errors. Try to find and fix the errors before I do. This challenge begs the question: "What is proper testing?" then introduces different kinds of testing approaches.