COP 2551
Summer 2004
Programming Assignment 4
========================
You are to write a java program that will
perform the tasks described below and
demonstrated in class. Be aware that there is
a Cls.java class in the Program4 public
subdirectory. You should begin using this
class to clear the screen (this will also be
demonstrated in class).
Your program must implement multiple
classes, including an InsertionSort class that
accepts an array of Comparable objects and a
Student class that implements the Comparable
Interface. UML class diagrams are also
provided in the Program4 public subdirectory.
Your program is to implement the classes and
methods shown in those diagrams and described
below:
1. A driver class named ClassAverages.java
that:
a.
b.
c.
Asks the user how many students they
want to enter and will then loop to
instantiate that many Student objects
and assign them to a Student array.
Calls the insertion sort to sort in
ascending order the array of student
objects based on last name, first
name, middle initial.
Displays each student's name and
their averages. A sample of user
input and program output will be
available in a Microsoft Word file in
the Program4 public subdirectory.
2. An InsertionSort.java class with a method
that implements an insertion sort
that takes an array of Comparable
objects. See the selection and
insertion sorts on pages 343-344 of
our text.
3. A Student.java class that includes:
a.
A constructor that will invoke other
constructors to create a Name object
and a Grades object and store them in
name and grades instance variables.
b.
A compareTo() method that implements
the Comparable interface to compare
student names for use by the
InsertionSort class. The comparison
is to be based on last name, first
name and middle initial.
c.
A toString()method that will create a
string that can be used to display
all the data for a student. The
method can concatenate objects from
the Name and Grades classes to help
accomplish this. Of course, this
means that the Name and Grades
Classes must implment their own
toString() methods.
4. A Name.java class that includes:
a.
A constructor that will invoke other
methods as needed.
b.
A method that will obtain the
student's last name, first name, and
middle initial from the user and
store them in instance variables.
c.
A toString() method that formats the
desired display of a student's name.
5. A Grades.java class that includes:
a.
A constructor that invokes methods to
populate integer arrays (instance
variables) with quiz grades, program
grades, and exam grades and also
invoke a method that will calculate
the necessary averages (based on the
weights used in this course)and store
them in instance variables.
b.
A toString() method that formats the
averages and final exam grade as well
as the final course average.
Comments, style of indenting and spacing
between portions of the program should follow
that of the previous programs and what I have
demonstrated in class. You are encouraged to
use the clear screen method that I have placed
in the public subdirectory.
The turnin code will be higbee.cop2551_43.p4.
This assignment is due on Tuesday, July 6th at
the start of class. Note that we will cover
arrays on Thursday, June 24th, but you will
have an exam on Tuesday, June 29th. That will
give you a week following the exam to complete
Program 4. You should plan for a very busy
weekend finishing this project. If possible,
begin working no later than after the exam on
Tuesday so you can ask questions that Thursday.
In addition to the electronic turnin, you are
to turnin a folder (not a notebook) that
contains in the following order:
1. Your name, class and section number on the
front cover.
2. A page that has your name, class, section
number, and a brief description of what
your program does.
3. A printout of your code.
4. Copies of the class diagrams I have
provided with any changes necessary to show
what your programs actually did.
5. Discussion of how you tested your program.
6. A statement about your success in
completing the assignment, including
discussion of any problems you encountered
and your success (or lack of success) in
solving them.
Added bonus worth 10 points.
Include after your display of averages, the
same message that you displayed in Program 3,
but make it apply to the course average.