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Homework 1a

Homework 1a
Before attempting this project, be sure you have completed all of the reading assignments, hands-on
labs, discussions, and assignments to date.
(25 points) Write a Java program that calculates and displays the results of addition, subtraction,
multiplication, division, modulus, bitwise &, or bitwise | operation on two integer values input by the
user. The program should prompt the user for the two integers and the operation to be performed.
Here is a sample run:
Enter the first integer: 24
Enter the second integer: 4
Enter the operation: +
The results of 24 + 4 is 28
Grading Rubric:
In all programming assignments the following grading rubric will be used to determine your grade:
Attribute Exceeds Meets Does not meet
Design (5 points) (5 points)
Exhibits proper use of
parameters, and
selection of data types
all of the time.
Employs correct and
appropriate use of
structures (loops,
conditionals, classes
etc.) all of the time.
Efficient algorithms
used all of the time.
(3-4 points)
Exhibits proper use of
parameters, and
selection of data types
most of the time.
Employs correct and
appropriate use of
structures (loops,
conditionals, classes
etc.) most of the time.
Efficient algorithms
used most of the time.
(0-2 points)
Rarely exhibits proper
use of parameters, and
selection of data types.
Rarely employs correct
and appropriate use of
structures (loops,
conditionals, classes
Poorly structured and
inefficient algorithms.
Functionality (10
(9-10 points)
Extra effort was
apparent through the
addition of significant
and additional
functionality beyond
the scope of the
(7-8 points)
Program fulfills most
Most requirements
were fulfilled.
Screen captures
(0-6 points)
Program does not fulfill
Few requirements
were fulfilled.
demonstrating the
successful compiling
and running of the
Test cases (5 points) (5 points)
Test cases provide
coverage of all code
Discussion of run-time
errors included.
(3-4 points)
Test cases provide
coverage of most code
Test cases results well
documented providing
pass/fail results for
each test case.
(0-2 points)
No or insufficient test
Minimal supporting
evidence provided to
verify testing actually
took place.
Java Style Guide (5
(5 points)
Code impeccably neat
and well-organized.
Extensive In-line
comments providing
additional insight into
code design and
(3-4 points)
Header comments
include filename,
author, date and brief
purpose of the
In-line comments used
to describe major
functionality of the
Meaningful variable
names and prompts
Class names are
written in
Variable names are
written in
Constant names are in
written in All Capitals.
Braces use K&R style.
(0-2 points)
Code rarely follows
recommended Java
style guide
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 each 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 1a assignment area no later than the
due date listed in the calendar. You should include your name and HW1a in your word file submitted
(e.g. firstnamelastnamehw1a.docx)

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