A:
Exercise 4.1 and 4.2 in the book. The topic is constructors in Java.
B:
Exercise 4.5 in the book. The topics are arrays and strings.
C:
Exercise 4.6 in the book. The topic is overloading methods.
D:
Exercise 4.11 in the book. The topic is the special method finalize.
Best regards,
Kristian
Torp