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Homework 2Before attempting this project, be sure you have completed all of the reading assignments, hands-onlabs, discussions, and assignments to date.(25 points) Design a Java class named Polygon that contains:? A private int data field named numSides that defines the number of sides of thepolygon. The default value should be 4.? A private double data field named sideLength that defines the length of each side. Thedefault value should be 10.0.? A private double data field named xCoord that defines the x-coordinate of the center ofthe polygon. The default value should be 0.0.? A private double data field named yCoord that defines the y-coordinate of the center ofthe polygon. The default value should be 0.0.? A private double data field named apothem that defines the apothem of the polygon.The default value should 5.0.? A private double data filed named perimeter that defines the perimeter of the polygon.The default value should 20.0.? A no argument constructor that creates a Polygon using the default number of sides,default side length, default x- and y-coordinates, and the default apothem.? A constructor that creates a Polygon using a specified number of sides, side length, xandy-coordinates and the apothem? A getArea() method that returns a double value representing the area of the polygon.(Note the area of a regular Polgon can be calculated from ½ * Apothem*Perimeter)? Getter and setter methods for all data fields? A toString() method that displays the number of sides, side length, x-coordinate, ycoordinateand apothem values in String formatBe sure your code compiles.Next, write a Java test program, named TestPolygon, to create five different polygons. Whencreating the five polygons, create one using the no argument constructor. For the remaining four,feel free to use any number of sides, side length and x-, and y-coordinates and apothem that are notequal to the default values and not equal to each other. For each of the five polygons, call all of themethods and display the results. For example for a Polygon with 3 sides, side length of 2.0 and xcoordinateand y-coordinates of 1.0, and apothem of 1.0 the following output may result:toString() results: (numsides=3, sideLength=2.0,xcoord=1.0,ycoord=1.0, apothem=1.0)getNumSides() results: 3getSideLength() results: 2.0getXCoord() results: 1.0getYCoord() results: 1.0getApothem() results:1.0getPerimeter() results: 6.0getArea() results: 3.0setNumSides(4) results: 4
Homework 2
Before attempting this project, be sure you have completed all of the reading assignments, hands-on
labs, discussions, and assignments to date.
(25 points) Design a Java class named Polygon that contains: A private int data field named numSides that defines the number of sides of the
polygon. The default value should be 4.
A private double data field named sideLength that defines the length of each side. The
default value should be 10.0.
A private double data field named xCoord that defines the x-coordinate of the center of
the polygon. The default value should be 0.0.
A private double data field named yCoord that defines the y-coordinate of the center of
the polygon. The default value should be 0.0.
A private double data field named apothem that defines the apothem of the polygon.
The default value should 5.0.
A private double data filed named perimeter that defines the perimeter of the polygon.
The default value should 20.0.
A no argument constructor that creates a Polygon using the default number of sides,
default side length, default x- and y-coordinates, and the default apothem.
A constructor that creates a Polygon using a specified number of sides, side length, xand y-coordinates and the apothem
A getArea() method that returns a double value representing the area of the polygon.
(Note the area of a regular Polgon can be calculated from ½ * Apothem*Perimeter)
Getter and setter methods for all data fields
A toString() method that displays the number of sides, side length, x-coordinate, ycoordinate and apothem values in String format Be sure your code compiles.
Next, write a Java test program, named TestPolygon, to create five different polygons. When
creating the five polygons, create one using the no argument constructor. For the remaining four,
feel free to use any number of sides, side length and x-, and y-coordinates and apothem that are not
equal to the default values and not equal to each other. For each of the five polygons, call all of the
methods and display the results. For example for a Polygon with 3 sides, side length of 2.0 and xcoordinate and y-coordinates of 1.0, and apothem of 1.0 the following output may result: toString() results: (numsides=3, sideLength=2.0,
xcoord=1.0,ycoord=1.0, apothem=1.0)
getNumSides() results: 3
getSideLength() results: 2.0
getXCoord() results: 1.0
getYCoord() results: 1.0
getApothem() results:1.0
getPerimeter() results: 6.0
getArea() results: 3.0
setNumSides(4) results: 4 1 setSideLength(3) results: 3.0
setXCoord(2.0) results: 2.0
setYCoord(2.0) results: 2.0
setApothem(2.0) results:2.0 Keep in mind, for five Polygons, you will have five different output results. Also, note there is no
requirement to actually draw a Polygon.
Grading Rubric:
In all programming assignments the following grading rubric will be used to determine your grade:
Attribute
Design (5 points) Functionality (10
points) Test cases (5 points) Exceeds
(5 points) Meets
(3-4 points) Does not meet
(0-2 points) Exhibits proper use of
parameters, and
selection of data types
all of the time. Exhibits proper use of
parameters, and
selection of data types
most of the time. Rarely exhibits proper
use of parameters, and
selection of data types. Employs correct and
appropriate use of
programming
structures (loops,
conditionals, classes
etc.) all of the time. Employs correct and
appropriate use of
programming
structures (loops,
conditionals, classes
etc.) most of the time. Rarely employs correct
and appropriate use of
programming
structures (loops,
conditionals, classes
etc.)
Poorly structured and
inefficient algorithms. Efficient algorithms
used all of the time.
(9-10 points) Efficient algorithms
used most of the time.
(7-8 points) Extra effort was
apparent through the
addition of significant
and additional
functionality beyond
the scope of the
assignment. Program fulfills most
functionality. Program does not fulfill
functionality. Most requirements
were fulfilled. Few requirements
were fulfilled. Screen captures
provided
demonstrating the
successful compiling
and running of the
program.
(3-4 points) (0-2 points) (5 points) (0-6 points) Test cases provide
comprehensive
2 coverage of all code
paths.
Discussion of run-time
errors included. Java Style Guide (5
points) (5 points)
Code impeccably neat
and well-organized.
Extensive In-line
comments providing
additional insight into
code design and
functionality Test cases provide
coverage of most code
paths.
Test cases results well
documented providing
pass/fail results for
each test case.
(3-4 points)
Header comments
include filename,
author, date and brief
purpose of the
program. No or insufficient test
cases
Minimal supporting
evidence provided to
verify testing actually
took place.
(0-2 points)
Code rarely follows
recommended Java
style guide In-line comments used
to describe major
functionality of the
code.
Meaningful variable
names and prompts
applied.
Class names are
written in
UpperCamelCase.
Variable names are
written in
lowerCamelCase.
Constant names are in
written in All Capitals.
Braces use K&R style. Submission requirements
Your deliverables include all Java files (.java) and a single word (or PDF) document. The Java files should
be named appropriately for your applications. Your word document should include screen shots
showing the successful compiling and running of each application, and a detailed description of the test
plan for your application. The test plan should include the input, expected output, actual output and if
the test case passed or failed. Submit your files to the Homework 2 assignment area no later than the
due date listed in the calendar. You should include your name and HW2 in your word (or PDF) file
submitted (e.g. firstnamelastnamehw2.docx or firstnamelastnamehw2.pdf)
3
Solution details
Solution #00020279
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DATE ANSWEREDOct 14, 2020
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