Exercise 8.1

Do interactive exercises based on the Person class.

Exercise 8.2

Build a class that represents temperature objects.

• What instance data and instance methods should the class support?
• What invariants should the class maintain?
• Write the following:
  • a method that supports “pretty” printing
  • a constructor that maintains the invariants and defaults to 0 degrees Celsius
  • an accessor that gets the Fahrenheit value of this temperature
  • a mutator that changes the degrees value