Oct 29 Lecture Notes

• Arrays of objects
  • JimsPoint.java
  • TestPointArray.java
  • Add in print statements which will show each variable, and each slot in the array.
  • Explain the "static" stuff - and add calls to test them.
  • Fill in the other slots, but have some of them refer to the same object.
• Zork
  • Notice the "static" vs "instance" methods and variables.
  • Notice the use of arrays of objects.
  • How many rooms are there?
  • How is the map information stored?
  • Note the use of an explicit array {"North","South",...} to initialize directions[].
  • Why is Room[] public? (What happens if we make it private?)
  • How would we add data and methods to pick things up and carry them around from room to room?
  • Why are the methods in class Game{} marked "static"?
  • Note the boolean "or" in the Game.playing() if statements.
  • What happens if the user mistypes? How would we fix that to make it friendlier?