This document contains information for PRG 420 assignments for each week. It includes analyzing and coding assignments for simple Java programs involving basic programming concepts like variables, conditionals, loops, arrays, and exceptions. It provides starter code files and instructions for completing assignments in each area. Students are to download assignment files, write code to complete the programming tasks outlined, test their code, and submit their work.

1. PRG 420 All Assignments
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PRG 420 Week 1 Individual Analyzing a Simple Java™ Program (New
Syllabus)
PRG 420 Week 1 Coding a Simple “Hello, world!” Java™ Program (New
Syllabus)
PRG 420 Week 2 Analyzing a Program Containing if-then and switch
(New Syllabus)
PRG 420 Week 2 Coding a Program Containing if-then and switch (New
Syllabus)
PRG 420 Week 3 Analyzing a Program Containing Loops (New Syllabus)
PRG 420 Week 3 Coding a Program Containing Loops (New Syllabus)
PRG 420 Week 4 Analyzing a Program Containing Arrays (New Syllabus)
PRG 420 Week 4 Coding a Program Containing an Array (New Syllabus)
PRG 420 Week 5 Analyzing a Program Containing Exception Handling
(New Syllabus)
PRG 420 Week 5 Coding a Program Containing Exception Handling (New
Syllabus)
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2. PRG 420 Week 1 Coding a Simple “Hello, world!” Java™
Program(New Syllabus)
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Individual: Coding a Simple “Hello, world!” Java™ Program Instructions:
Resource: • PRG 420 Week One Coding Assigment Text File (starter
code for this assignment that includes placeholders) For this
assignment, you will apply what you learned in analyzing a simple
Java™ program by writing your own Java™ program. The Java™
program you write should do the following: • Display a prompt on the
console asking the user to type in his or her first name • Construct the
greeting string "Hello, nameEntered!" • Display the constructed
greeting on the console Complete this assignment by doing the
following: 1. Download the linked text file. 2. Add comments to the
code by typing your name and the date in the multi-line comment
header. 3. Replace the following lines with Java™ code as directed in
the file: • LINE 1 • LINE 2 • LINE 3 • LINE 4 4. Comment each line of
code you add to explain what you intend the code to do. 5. Test and
modify your Java™ program until it runs without errors and produces
the results as described above. Note: Refer to this PRG 420 Week's
analyzing code assignment if you need help. After you complete your
assignment, zip your JAVA source (.java) file and submit the ZIP file
using the Assignment Files tab. Supporting Material: PRG 420 Week
One Coding Assignment Text File

3. ==============================================
PRG 420 Week 1 DQ 1
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Watch the first and second videos for Week 1. Explain a little about the
Java Virtual Machine, what it executes, how it might be similar to any
other language, and how it is different from a native language, such as
C++.
==============================================
PRG 420 Week 1 DQ 2
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Java is a portable language, and being an object-oriented programming
language, it also encourages component reusability. How does Java
achieve these two important features? How are these features
desirable in modern software engineering?

4. ==============================================
PRG 420 Week 1 DQ 3
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You are a bank manager and you are helping a new bank teller
understand the kind of accounts the bank offers. If a customer comes in
asking to open a new savings account, the teller needs to ask what kind
of account--passbook savings or certificate of deposit--the customer
would like to open. Remind the customer that all accounts with our
bank are insured by the FDIC. You should explain that all accounts earn
some interest; a savings account’s interest is compounded monthly.
You should assign a unique account number after accepting the
customer’s initial deposit. If the customer chooses to receive
statements electronically, the system will send an e-mail with a
monthly statement; if the customer chooses not to, then a paper
statement will be sent by mail quarterly. If savings account is a class,
give an example of each of the following as it relates to that savings
account. Explain your reasoning behind your example. o Superclass o
Subclass o Attribute o Method o Instance (object) o Encapsulation
==============================================

5. PRG 420 Week 1 Individual Analyzing a Simple Java™ Program
(New Syllabus)
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Individual: Analyzing a Simple Java™ Program Instructions: Resource: •
PRG 420 Week One Analyze Assignment Text File Analyzing Java™ code-
-that is, reading and predicting the outcome of Java™ code, given one
or more inputs--is an essential skill. The ability to analyze code allows
you to learn from example code and tutorials. It also allows you to
write and debug your own Java™ code. For this assignment, you will be
analyzing the Java™ code in the linked text file. Carefully read through
the code line by line, then answer the following questions in a
Microsoft® Word document: 1. What syntax signals a Java™ comment?
(In other words, what symbol(s) tell the Java™ compiler not to process
certain text?) 2. Type the line(s) of code that accept user input. 3. Type
the line(s) of code that process user input. 4. Type the line(s) of code
that produce output. 5. Type the result this program would produce if a
user, when prompted, responded by typing "everyone" and then hit
Enter. 6. Type the result this program would produce if a user, when
prompted, responded by typing in "Mickey Mouse" and hit Enter. 7.
Type the result this program would produce if a user, when prompted,
responded by typing "Benjamin Franklin" and hit Enter. Submit your
completed Word document using the Assignment Files tab. Supporting
Material: PRG 420 Week One Analyze Assignment Text File

6. ==============================================
PRG 420 Week 1 Individual Assignment Hello world
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INDIVIDUAL ASSIGNMENT OF WEEK # 1
Create a program in Java™ that displays “Hello world!” Take a screen
shot that shows the program’s successful compilation and execution.
Then submit your program along with the screen shot.
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PRG 420 Week 2 Analyzing a Program Containing if-then and
switch(New Syllabus)
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7. Individual: Analyzing a Program Containing if-then and switch
Instructions: Resource: • PRG 420 Week Two Analyze Assignment Text
File The ability to read through Java™ code and predict the results,
given specific inputs, is an extremely useful skill. For this assignment,
you will be analyzing the Java™ code in the linked text file, and
predicting the results given specific input. Carefully read through the
code line by line, then answer the following questions in a Microsoft®
Word document: 1. What is the output of the program as it is written?
2. What would the output of the program be if you assigned I AmHappy
to false, num to 35, and numDayOf PRG 420 Week to 5? 3. What would
the output of the program be if you assigned the I AmHappy to 5, num
to 50, and numDayOf PRG 420 Week to 8? Submit your completed
Word document using the Assignment Files tab. Supporting Material:
PRG 420 Week Two Analyze Assignment Text File
==============================================
PRG 420 Week 2 Coding a Program Containing if-then and
switch(New Syllabus)
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Individual: Coding a Program Containing if-then and switch Instructions:
Resources: • PRG 420 Week Two Coding Assigment Text File (starter
code for this assignment that includes placeholders) • PRG 420 Week

8. Two Recommended Activity Text File (examples of how to code a
switch statement, an if-then-else statement, and how to construct a
string to display text onscreen) For this assignment, you will apply what
you learned in analyzing Java™ code so far in this course by writing your
own Java™ program. The Java™ program you write should do the
following: • Accept user input that represents the number of sides in a
polygon. Note: The code to do this is already written for you. • If input
value is not between 3 and 5, display an informative error message • If
input value is between 3 and 5, use a switch statement to display a
message that identifies the correct polygon based on the number of
sides matching the input number (e.g., triangle, rectangle, or polygon)
Complete this assignment by doing the following: 1. Download the
linked PRG 420 Week Two Coding Assigment Text File. 2. Read the file
carefully, especially the explanatory comments of what the existing
code does. 3. Add your name and the date in the multi-line comment
header. 4. Refer to the following linked PRG 420 Week Two
Recommended Activity Text File to see examples of how to code all of
the Java™ statements (i.e., switch, println(), and if-then-else) you will
need to write to complete this Assignment. 5. Replace the following
lines with Java code as directed in the file: • LINE 1 • LINE 2 6.
Comment each line of code you add to explain what you intend the
code to do. 7. Test and modify your Java™ program until it runs without
errors and produces the results as described above. Note: Refer to this
PRG 420 Week's analyzing code assignment if you need help. After you
complete your assignment, zip your JAVA source (.java) file and submit
the ZIP file using the Assignment Files tab. Supporting Material: PRG
420 Week Two Coding Assignment Text File PRG 420 Week Two
Recommended Activity Text File

9. ==============================================
PRG 420 Week 2 DQ 1
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Please watch the first three videos for Week 2 (around 40 minutes).
Explain how an outside class may be given access to find the value of a
private instance variable, or to change the value of a private instance
variable. Why does this add value to your program?
==============================================
PRG 420 Week 2 DQ 2
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What are the three types of errors that you can encounter in a Java™
program? Describe them, and explain how you would minimize the
errors. What are some examples of errors that you have seen before?
==============================================

10. PRG 420 Week 2 DQ 3
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A class is a blueprint for an object. A class may have a default
constructor, a constructor with arguments, accessor methods, mutator
methods, public fields, and private fields. Choose a category (such as
animal, vehicle, and so on) and describe how you would design a class
for it.
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PRG 420 Week 2 Individual Assignment Netbeans Project
(annual compensation)
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INDIVIDUAL ASSIGNMENT OF WEEK # 2

11. Write a Java™ application using NetBeans™ Integrated Development
Environment (IDE) that calculates the total annual compensation of a
salesperson. Consider the following factors:
A salesperson will earn a fixed salary of $50,000
A salesperson will also receive a commission as a sales incentive.
Commission is a percentage of the salesperson’s annual sales. The
current commission is 5 % of total sales.
The total annual compensation is the fixed salary plus the commission
earned.
The Java™ application should meet these technical requirements:
The application should have at least one class, in addition to the
application’s controlling class (a controlling class is where the main
function resides).

12. There should be proper documentation in the source code.
The application should ask the user to enter annual sales, and it should
display the total annual compensation.
==============================================
PRG 420 Week 3 Analyzing a Program Containing Loops(New
Syllabus)
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Individual: Analyzing a Program Containing Loops Instructions:
Resource: • PRG 420 Week Three Analyze Assignment Text File For this
assignment, you will be analyzing the Java™ code in the linked PRG 420
Week Three Analyze Assignment Text File, and predicting the results.
You will also examine both the code and the output for inconsistencies
And clarity. This Java™ code includes examples of for, while, and do
while Loops. Carefully read through the code line by line, then answer
the following questions in a Microsoft® Word document: 1. What is the
output of the program as it is written? 2. What improvement(s) could
be made to this code to make the output clearer or more accurate, or
to make the code easier to maintain? Note: You do not have to make
the improvements in the Java™ program, although you certainly may.
For this assignment, simply describe the things you see that would need

13. to be improved to elevate the code and output to a more professional
level. For the code, consider variable names and hardcoding. For the
output, consider formatting/punctuation, repetition, accuracy of
information, and wording. Submit your completed Word document
using the Assignment Files tab. Supporting Material: PRG 420 Week
Three Analyze Assignment Text File
==============================================
PRG 420 Week 3 Coding a Program Containing Loops(New
Syllabus)
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Individual: Coding a Program Containing Loops Instructions: Resource: •
PRG 420 Week Three Coding Assignment Text File (starter code for this
assignment that includes placeholders) For this assignment, you will
apply what you learned in analyzing for, while, and do-while loops by
writing these statements yourself. The Java™ program you write should
do the following: • Display a pyramid of asterisks onscreen (i.e., a
nested for loop) • Display the integers 10 to 1 in decreasing order, one
number per line (i.e., a while/do-whlie loop) • Add 7 until the sum
becomes greater than 157, at which point the program should display
both the sum and the number of 7s added Complete this assignment by
doing the following: 1. Download the linked PRG 420 Week Three

14. Coding Assignment Text File. 2. Add comments to the code by typing
your name and the date in the multi-line comment header. 3. Replace
the following lines with Java™ code as directed in the file: • LINE 1 •
LINE 2 • LINE 3 4. Comment each line of code you add to explain what
you intend the code to do and why you chose each type of loop. 5. Test
and modify your Java™ program until it runs without errors and
produces the results as described above. Note: Refer to this PRG 420
Week's analyzing code assignment if you need help. After you complete
your assignment, zip your JAVA source (.java) file and submit the ZIP file
using the Assignment Files tab. Supporting Material: PRG 420 Week
Three Coding Assignment Text File
==============================================
PRG 420 Week 3 DQ 1
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Please watch the first and the fifth (next to the last) videos for Week 3
(feel free to use the transcripts, too!) . Tell me about the similarities
between the conditionals in if statements and the conditionals in while
statements.
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15. PRG 420 Week 3 DQ 2
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Convert the following program from for loop to while loop. class
ArithmeticProgression { public static void main (String [] args) { int sum
= 0; for (int i = 1; i <= 1000; i++) { sum = sum + i;
System.out.println(Integer.toString(sum)); } } }
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PRG 420 Week 3 DQ 3
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There are 3 kinds of loops—for loop, while loop, and do while loop.
Under which circumstances would each kind of loop be more
appropriate? Explain your answers using specific examples.
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PRG 420 Week 3 DQ 4

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Consider the following conditions: CONDITION 1: while ( !(cChoice ==
'Q' || cChoice == 'q') ) CONDITION 2: while ( cChoice != 'Q' || cChoice !=
'q' ) Do Conditions 1 and 2 give the same result? What tool or technique
would you use to explain the result?
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PRG 420 Week 3 Individual Assignment Netbeans Project
(annual compensation with commission)
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INDIVIDUAL ASSIGNMENT OF WEEK # 3
Modify the Week Two Java™ application using Java™ NetBeans™ IDE to
meet these additional and changed business requirements:
The company has recently changed its total annual compensation policy
to improve sales.

17. A salesperson will continue to earn a fixed salary of $50,000. The
current sales target for every salesperson is $120,000.
The sales incentive will only start when 80% of the sales target is met.
The current commission is 5% of total sales.
If a salesperson exceeds the sales target, the commission will increase
based on an acceleration factor. The acceleration factor is 1.5.
The application should ask the user to enter annual sales, and it should
display the total annual compensation.
The application should also display a table of potential total annual
compensation that the salesperson could have earned, in $5000
increments above the salesperson’s annual sales, until it reaches 50%
above the salesperson’s annual sales.
Sample Table: Assuming a total annual sales of $100,000, the table
would look like this:

18. Total Sales
Total Compensation
100,000
<>
105,000
<>
110,000
<>

19. 115,000
<>
120,000
<>
125,000
<>
130,000
<>
135,000

20. <>
140,000
<>
145,000
<>
150,000
<>
The Java™ application should also meet these technical requirements:
The application should have at least one class, in addition to the
application’s controlling class.

21. The source code must demonstrate the use of conditional and looping
structures.
There should be proper documentation in the source code.
==============================================
PRG 420 Week 4 Analyzing a Program Containing Arrays(New
Syllabus)
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Individual: Analyzing a Program Containing Arrays Instructions:
Resource: • PRG 420 Week Four Analyze Assignment Text File The
ability to read through Java™ code and predict the results, given
specific inputs, is an extremely useful skill. For this assignment, you will
be analyzing the Java™ code in the linked PRG 420 Week Four Analyze
Assignment Text File, and answering questions about the array that
appears in the code. Carefully read through the code line by line, then
answer the following questions in a Microsoft® Word document: 1. If an
array had not been chosen to hold the data manipulated in this
program, how else (i.e., with what other data types) could it have been

22. represented? 2. Which approach, using an array or using the alternative
you identified in question #1, is shorter/easier? 3. What is the output of
this program? 4. What would be the result of using a println()
statement to display the value of arraynum[8]? 5. How many values can
arraynum contain, and why? Submit your completed Word document
using the Assignment Files tab. Supporting Material: PRG 420 Week
Four Analyze Assignment Text File
==============================================
PRG 420 Week 4 Coding a Program Containing an Array(New
Syllabus)
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Individual: Coding a Program Containing an Array Instructions:
Resource: • PRG 420 Week Four Coding Assigment Text File (starter
code for this assignment that includes placeholders) For this
assignment, you will apply what you learned in analyzing a simple
Java™ program by writing your own Java™ program that creates and
accesses an array of integers. The Java™ program you write should do
the following: • Create an array to hold 10 integers • Ask the user for
an integer. Note: This code has already been written for you. •
Populate the array. Note: The first element should be the integer input
by the user. The second through tenth elements should each be the

23. previous element + 100. For example, if the user inputs 10, the first
array value should be 10, the second 110, the third 210, and so on. •
Display the contents of the array on the screen in ascending index
order. Complete this assignment by doing the following: 1. Download
the linked PRG 420 Week Four Coding Assigment Text File. 2. Read each
line of the file carefully, including the detailed instructions at the top. 3.
Add comments to the code by typing your name and the date in the
multi-line comment header. 4. Replace the following lines with Java™
code as directed in the file: • LINE 1 • LINE 2 • LINE 3 • LINE 4 • LINE 5
5. Comment each line of code you add to explain what you intend the
code to do. 6. Test and modify your Java™ program until it runs without
errors and produces the results as described above. Note: Refer to this
PRG 420 Week's analyzing code assignment if you need help. After you
complete your assignment, zip your JAVA source (.java) file and submit
the ZIP file using the Assignment Files tab. Supporting Material: PRG
420 Week Four Coding Assignment Text File
==============================================
PRG 420 Week 4 DQ 1
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Assuming you want an array (named many) of seven ints what would
be the easiest way to write the code if you wanted many to contain all
zeros? What if you wanted many to contain a selection of seven values,

24. that were not all zeros? What would be the subscripts of all the
elements of many?
==============================================
PRG 420 Week 4 DQ 2
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What is the difference between arrays and ArrayList? What are the
advantages and disadvantages of an ArrayList, and when should you
use an ArrayList over a simple array?
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PRG 420 Week 4 DQ 3
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What is the difference between string and StringBuilder? What are the
advantages and disadvantages of a StringBuilder, and when should you
use a StringBuilder over a simple String?

25. ==============================================
PRG 420 Week 4 Individual Assignment Netbeans Project
(annual compensation comparison)
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INDIVIDUAL ASSIGNMENT OF WEEK # 4
Modify the Week Three Java™ application using Java™ NetBeans™ IDE
to meet these additional and changed business requirements:
The application will now compare the total annual compensation of at
least two salespersons.
It will calculate the additional amount of sales that each salesperson
must achieve to match or exceed the higher of the two earners.

26. The application should ask for the name of each salesperson being
compared.
The Java™ application should also meet these technical requirements:
The application should have at least one class, in addition to the
application’s controlling class.
The source code must demonstrate the use of Array or ArrayList.
There should be proper documentation in the source code.
==============================================
PRG 420 Week 5 Analyzing a Program Containing Exception
Handling(New Syllabus)
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27. Individual: Analyzing a Program Containing Exception Handling
Instructions: Resource: • PRG 420 Week Five Analyze Assignment Text
File For this assignment, you will be analyzing the code in the linked
PRG 420 Week Five Analyze Assignment Text File. This program
contains exception handling code. You will be evaluating the code and
using what you learned in this PRG 420 Week's readings to predict the
results based on the program as written, as well as based on changing
the value of a specific variable. Carefully read through the code line by
line, then answer the following questions in a Microsoft® Word
document: 1. What are the results of the program as written? 2. What
results would the program produce if you changed the value of a from 0
to 3? Submit your completed Word document using the Assignment
Files tab. Supporting Material: PRG 420 Week Five Analyze Assignment
Text File
==============================================
PRG 420 Week 5 Coding a Program Containing Exception
Handling(New Syllabus)
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Individual: Coding a Program Containing Exception Handling
Instructions: Resource: • PRG 420 Week Five Coding Assignment Text
File (starter code for this assignment that includes placeholders) For

28. this assignment, you will apply what you learned in analyzing a simple
Java™ program by writing your own Java™ program. The Java™
program you write should do the following: • Organize the code
capable of throwing an exception of type ParseException as a try block.
• Include a catch block to handle a ParseException error thrown by the
try block. • Include a hard-coded error that results in a ParseException
to prove that the code can catch and handle this type of exception.
Complete this assignment by doing the following: 1. Download the
linked PRG 420 Week Five Coding Assignment Text File. 2. Add
comments to the code by typing your name and the date in the multi-
line comment header. 3. Replace the following lines with Java™ code as
directed in the file: • LINE 1 • LINE 2 4. Replace the value assigned with
one of the variables so that the program throws an exception. 5.
Comment each line of code you add to explain what you intend the
code to do. Be sure to include a comment for the replacement value
you added in Step 4 that causes the program to throw an exception. 6.
Test and modify your Java™ program until it runs without errors and
produces the results described above. Note: Refer to this PRG 420
Week's analyzing code assignment if you need help. After you complete
your assignment, zip your JAVA file and submit the ZIP file using the
Assignment Files tab. SupportingMaterial: PRG 420 Week Five Coding
Assignment Text File
==============================================
PRG 420 Week 5 DQ 1

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Please explain one use for a static variable in a class. Please explain how
you might use one static method ( not main() ) in a class.
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PRG 420 Week 5 DQ 2
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In your opinion, what are the three biggest challenges in planning and
designing a solution for a programming problem? What can you do to
overcome these challenges? How would you apply these techniques to
the programs in this class?
==============================================
PRG 420 Week 5 DQ 3
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30. Using an example from your work or daily life, describe an "is-a"
relationship. Why is an "is-a" relationship important when designing an
inheritance between classes?
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PRG 420 Week 5 Team Assignment Resuability (2 Papers)
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In the real world, an entire program is rarely written from scratch. It is
very likely that there are classes or methods that already exist. The key
to using these existing modules successfully depends on how modularly
the classes or methods are written. In this Learning Team assignment,
your mission is to take a section of one team member’s Week Four
program and replace a similar section of another team member’s Week
Four program. Submit the following deliverables for this Learning Team
assignment: A 700- to 1050-word paper describing the following: How
the two programs were selected The process of identifying the classes
or methods for replacement The changes needed to make the final
Java™ application program work correctly The final Java™ application
program
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