Java Reference
In-Depth Information
G Exercise R2.17. What is the purpose of a graphics context?
G Exercise R2.18. Why are separate viewer and component classes used for
graphical programs?
G Exercise R2.19. How do you specify a text color?
Additional review exercises are available in WileyPLUS.
PROGRAMMING EXERCISES
T Exercise P2.1. Write an
AreaTester
program that constructs a
Rectangle
object and then computes and prints its area. Use the
getWidth
and
getHeight
methods. Also print the expected answer.
T Exercise P2.2. Write a
PerimeterTester
program that constructs a
Rectangle
object and then computes and prints its perimeter. Use the
getWidth
and
getHeight
methods. Also print the expected answer.
Exercise P2.3. Write a program called
FourRectanglePrinter
that
constructs a
Rectangle
object, prints its location by calling
System.out.println(box)
, and then translates and prints it three
more times, so that, if the rectangles were drawn, they would form one large
rectangle:
75
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Exercise P2.4.The
intersection
method computes the intersection
of two rectanglesȌthat is, the rectangle that is formed by two overlapping
rectangles:
