Java Reference
In-Depth Information
GExercise P9.22. Change the
RectangleComponent
for the
animation program in
Section 9.9
so that the rectangle bounces off the
edges of the component rather than simply moving outside.
GExercise P9.23. Write a program that animates a car so that it moves
across a frame.
GExercise P9.24. Write a program that animates two cars moving across
a frame in opposite directions (but at different heights so that they
don't collide.)
GExercise P9.25. Change the
RectangleComponent
for the mouse
listener program in
Section 9.10
so that a new rectangle is added to the
component whenever the mouse is clicked. Hint: Keep an
ArrayList<Rectangle>
and draw all rectangles in the
paint-Component
method.
434
435
GExercise P9.26. Write a program that demonstrates the growth of a roach
population. Start with two roaches and double the number of roaches
with each button click.
Additional programming exercises are available in WileyPLUS.
PROGRAMMING PROJECTS
Project 9.1. Design an interface
MoveableShape
that can be used as a
generic mechanism for animating a shape. A moveable shape must have
two methods:
move
and
draw
. Write a generic
AnimationPanel
that paints and moves any
MoveableShape
(or array list of
MoveableShape
objects if you covered
Chapter 7
). Supply moveable
rectangle and car shapes.
Project 9.2. Your task is to design a general program for managing
board games with two players. Your program should be flexible enough
to handle games such as tic-tac-toe, chess, or the Game of Nim of Project
6.2.
