Assignment
#1

Create the class as described in the book.

·

·
Your class should have ONLY the following  instance
variables:

double
coefA, double coefB, double coefC

·
Your class should have the following methods:

·
A constructor,
and a default constructor

·
Methods to retrieve the coefficients (called getCoefA, getCoefB, getCoefC)

·
A Method to evaluate the quadratic expression of a
particular value of x ( called evalExpression)

·
The sum
method (as described in the book)

·
The scale
method (as described in the book)

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A method to retrieve the number of real roots (  called getRootNum)

·
Methods to retrieve the value of the roots getRootOne, getRootTwo

·
An equals
method

·
A clone
method

·
solve the problem.

·

·
This class will have ONLY three objects of the
quadratic which is the sum of the two.)

·
QuadTest has at least the following methods ( they
should not be static methods) :

·
A method call intro
will give a description what the program is doing

·
A method called calculations
, this method will to do the required calculation, and to create a clone to
the first quadratic, and check if they are aliases, then check if the two

·
A method called parse,
which parse the line of input

This method will get the a string of eight numbers per
line: three numbers for the three coefficients, one number for the value of x,
the value of the number to scale the quadratic expression, and the next three
numbers are the coefficients for the second quadratic.

·
A method called output,
to create the output (not a static method) .

pay
attention:

If the quadratic has just one root,
display only one root

number of  roots, display: there are
infinity number of roots ( do not output: number of roots is 3).

The number of roots = 3 only helps
you in your program to determine that there are infinity number of roots

·
Create another class called Lab1 that contain main

·
The main method will read from an input file
one line at a time, each line will contain eight numbers. The main method will
continue the process until there is no more data to process.

The main method will call run method in the QuadTest class with the input line to be processed.

·
Create a clear output.

·
Test your program with the following data:( the data
will check for no real roots, every value of X is a real root, one root, two
roots )

·
Name the file as inputCoef.txt

2   8   6       3   2.0                   1  1  1

0   0   0       1   4.0                   2  2  2

0   0   5       2   5            0  1  2

4 10   7

0   2   6       3   2            1  0  2

2   4   9       1   5            1  2  0

3   6   3       5   2            5  5  5

The first three numbers are for the three coefficients, the next
numbers are for the value of x, the value of the number to scale the quadratic
expression ( a double value), and the next three numbers are the coefficients

If there are not eight tokens per line, Output the line and give an
appropriate message like: Not enough
data

·
Write your names at each file of

·
Write program Description after the Date

·
Write Clear
. The comments should be created in a style that will create

·

·
(example: not enough coefficients where read)

Create
the following output:

*********************************

Test # 1

-------------

2*x*x +8*x + 6

The values of the first quadratic expression with   x = 3 is :   48

The first quadratic after scaling with
R = 2   :

4*x*x  + 16*x  +
12

Number of roots:    2

Value of the roots:

Value of root1:     -3

Value of root2:     -1

1*x*x +1*x + 1

3*x*x +9*x + 7

A clone of the first quadratic is :

2*x*x +8*x + 6

The first quadratic and the clone are not aliases, but are equal to
each other

**************************************

Test # 2

Due Date: at the
beginning of class on  2/18 (week 4)

You will need to demonstrate
to me during lab that the project is working properly (it is part of your

Use this guideline for checking your program over before handing it in:

·
Hard copy of source
code
stapled together

·
Test cases stapled together

·
You name in a comment at the top of each file

·
Due Date in a comment under your name

·
Program Description after the Date

·

·
Descriptive identifiers

·
Constants defined as needed

·

beginning of program explaining the purpose of the program

program to clarify code

o   generating

o   if you give poor
comments or not enough you will loose 20%

·
Properly Labeled CD or Jump drive

·

·
File names are as given above

·
Formatted Output - Correct spelling and
capitalization is consistent. Create an output file: Output.txt

·
Correct Output

Hand
In:

In a closeable large
envelop (no folders) with your name
clearly stated outside  and assignment
#

·
A labeled
disk
with the source code ( the programs with the. java file ) and the
.class files.

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A hard
copy
of the source code programs stapled together.

·
A hard
Copy
of the test cases stapled
together with your name marked on top

·
You will be required to show me that the programs are working

5       - if the
project  is working good, get correct
output, and there are sufficient comments

4       - if the  project is working good, but there are some
problems with the

code, or some of the
output is incorrect