Exercises
8.2 (Based on Section 8.14) Explain the notion of package access in Java. Explain the negative aspects of package access.
8.3 What happens when a return type, even void, is specified for a constructor?
8.4 (Rectangle Class) Create a class Rectangle with attributes length and width, each of which defaults to 1. Provide methods that calculate the rectangle’s perimeter and area. It has set and get methods for both length and width. The set methods should verify that length and width are each floating-point numbers larger than 0.0 and less than 20.0. Write a program to test class Rectangle.
8.5 (Modifying the Internal Data Representation of a Class) It would be perfectly reasonable for the Time2 class of Fig. 8.5 to represent the time ...
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