Tutorial 4      Lecturer: Craig MacDonald  Tutorial: Mon@10:10am    971006
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CSC 108, Fall 1997                                     Tutorial notes,  T4
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Take up the example of the one class that has a field which is an object
of another class.  The Circle class HAS a Center (Point object) and HAS a
radius (primitive).

I will be finished chapter 5 by then so if you have time here are some more
topics.  Do an example that illustrates precedence such as
   boolean b = new MyClass().returnNum("1." + "03") - num > 1.0 || c;

Choose a better example than this or use this.  Get them to reason about this
expression.  Even without knowing about MyClass, this expression only makes
sense if returnNum takes a string as an argument and returns a double.  Ask
them about the "signature" of the returnNum method.

Do any example of narrowing conversions causing loss of magnitude such
as int to float.  Text page 178.

questions
4.13 factorial (non recursive please)

   public int Factorial (int n) {
      prod = 1;
      for (int i=1 ; i<=n ; i++)
         prod *= i;
      return prod;
   }

one of 4.14 - 4.17

4.19  ask them what fields are needed to accomplish the goals required in the
      methods don't fill this out with code just create empty methods.  They
      should tell you how to do this.

5.9 (a) and 5.10 (b) decimal to/from twos complement binary conversions

Again I have given you too much to cover.  Go slowly and don't worry about
completing this.  Do tell me how far you get, though.

The first assignment is due on Oct 10.

Craig