Typo corrections for M16 exam e01

On the yellow handout, p.2., line 3 is incorrect:

WRONG: Dog d3 = d6; /* 3 */
CORRECT: Dog d6 = d3; /* 3 /

On the yellow handout p. 1, there is an inconsistency in the examples for the toString() function. I will therefore accept either answer as correct. Specifically, the inconsistency is between:
Boeing 747-400 (744) (Capacity: 374 )
and Bombardier CRJ-200 V1 (Capacity: 50) in terms of whether there is a space before the final )

Clarifications and Hints

Question 1: You have a choice: you can design for an unlimited number of Cabins per Aircraft, or you can set a maximum (e.g. 4, or 10).

If you DO choose to set a maximum, that MUST be declared as a constant, and the actual number should appear in only one place in your code. Do that in whatever way is appropriate in Java.

For Question 2: java.lang.Integer has these constructors only:

Integer(int value)	Constructs a newly allocated Integer object that represents the specified int value.
Integer(String s)	Constructs a newly allocated Integer object that represents the int value indicated by the String parameter.