CpSc 210, Section 1
                             Assignment 3 
                            4 October 2001


Due: Thursday, October 11 by 11:59 p.m.  Not accepted late.

Total point value of assignment:  100 points

This assignment is to be done INDIVIDUALLY.



Create a file named MyMatrix.java which will contain this assignment.
There will be a 20 point penalty for failure to name file correctly.

Assignment:

	Problem 3.10 (page 48).  Finish the two-dimensional Vector-like
	structure Matrix.  Each element of the Matrix is indexed by two
	integers that identify the row and column containing the value.
	Your class should support a constructor; methods addRow and
	addColumn that append a row or column; the elementAt and
	setElementAt methods; and width and height methods.  In 
	addition, you should be able to removeRowAt and removeColAt.
	(Note:  the method name is removeColAt, not removeColumnAt.)

	Two additional methods are needed:

	public boolean equals ( Object other )
	// post:  returns true if this contains identical information 
	//        to other;  otherwise, returns false.

	public String toString()
	// post:  returns a String representation of the Matrix.
	//        representation may contain newline characters (\n).


	You must use Bailey's Vector class, so use

	 	import structure.Vector;


Input:  

	Input should be contained in your test program (main).
	Use the ReadStream class (page 334) that is part of Bailey's
	structure package for both input and output.

Output:

	Print your name, the assignment number, and a short description
	of the assignment.  Use the System.out commands.

	Output should be contained in your test program (main).
	Your class will also be tested with other test program(s).

Other requirements:

	Follow the style standards to be found on your instructor's
	web page for CPSC 210.

	Submit your program using the handin command.  There is a link to
	the handin description on your lab page (www.cs.clemson.edu/~lab210).


Grading rubric:

	Required documentation 10 pts.
	Style standards 10 pts.

	The program compiles without error.  10 pts.

    If the program does not compile, no further points will be awarded.

	Correct Methods:
	
	width 5 pts.
	height 5 pts. 
	equals 10 pts.
	toString 10 pts.
	insertColAt  10 pts.
	addRow  5 pts.
	addColumn  5 pts.
	removeRowAt  10 pts.
	removeColAt  10 pts.

When a method fails, no further testing will be done.  Thus, if your
width method does not work, you will receive a maximum of 30 points.