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PRG 421 All Assignment Recent
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PRG 421 All Assignment NEW
PRG 421 All Assignment
PRG 421 Individual Week 1 Analyze Assignment
PRG 421 Individual Week 1 Coding Assignment
BicycleDemo

PRG 421 Entire Course
http://www.uopassignments.com/prg-
421/prg-421-entire-course
PRG 421 College of Information Systems &
Technology Version 10
PRG 421 Week 1 DQ 1
PRG 421 Week 1 DQ 2
PRG 421 Week 1 Individual Hello World
Program

PRG 421 Week 2 DQ 1
PRG 421 Week 2 DQ 2
PRG 421 Week 2 Individual GUI Components
Program Payroll App
PRG 421 Week 3 DQ 1
PRG 421 Week 3 DQ 2
PRG 421 Week 3 Individual Contact Information
Program
PRJ 421 Week 3 Learning Team Initial program
PRG 421 Week 4 DQ 1
PRG 421 Week 4 DQ 2

PRG 421 Week 4 Individual Pie Chart Applet
RG 421 Week 5 DQ 1
PRG 421 Week 5 DQ 2
PRG 421 Week 5 Learning Team Connect to a
Database

Recent
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Resource:
• "Analyzing a Java™ Program Containing
Abstract and Derived Classes"

The purpose of creating an abstract class is to model
an abstract situation.
Example:
You work for a company that has different types of
customers: domestic, international, business
partners, individuals, and so on. It well may be
useful for you to "abstract out" all the information
that is common to all of your customers, such as
name, customernumber, order history, etc., but also
keep track of the information that is specific to
different classes of customer. For example, you may
want to keep track of additional information for
international customers so that you can handle
exchange rates and customs-relatedactivities,or you
may want to keep track of additional tax-, company-
, and department-related information for business
customers.
Modeling all these customers as one abstract class
("Customer") from which many specialized
customer classes derive or inherit ("International
Customer," "Business Customer," etc.) will allow
you to define all of that information your customers
have in common and put it in the "Customer" class,

and when you derive your specialized customer
classes from the abstract Customer class you will be
able to reuse all of those abstract data/methods.This
approach reduces the coding you have to do which,
in turn, reduces the probability of errors you will
make. It also allows you, as a programmer, to reduce
the cost of producing and maintaining the program.
In this assignment, you will analyze Java™code that
declares one abstract class and derives three
concrete classes from that one abstract class. You
will read through the code and predict the output of
the program.
Read through the linked Java™ code carefully.
Predict the result of running the Java™ code.
Writeyour prediction into a Microsoft® Word
document, focusing specifically on what text you
think will appear on the console after running the
Java™ code.
In the same Word document, answer the following
question:

• Why would a programmer choose to define a
method in an abstract class, such as the Animal
constructor method or the getName() method in the
linked code example, as opposed to defining a
method as abstract, such as the makeSound()
method in the linked example?
Supporting Material: Week One Analyze
Assignment Text File

Bicycle Demo Recent
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Bicycle Demo NEW
Resources:
• "Lesson: Object-Oriented Programming
Concepts" on The Java™ Tutorials website
• Downloadable starter code from the Oracle®
website: Bicyle class and BicycleDemo class

For this assignment, you will modify existing code to
create a single Java™ program named
BicycleDemo.java that incorporates the following:
• An abstractBicycle class that containsprivate data
relevantto all types of bicycles (cadence, speed, and
gear) in addition to one new static variable:
bicycleCount.The privatedata must be made visible
via public getter and setter methods; the static
variable must be set/manipulated in the Bicycle
constructor and made visible via a public getter
method.
• Two concrete classes named MountainBike and
RoadBike, both of which derive from the abstract
Bicycle class and both of which add their own class-
specific data and getter/setter methods.
Read through the "Lesson: Object-Oriented
Programming Concepts" on The Java™ Tutorials
website.

Download the linked Bicycle class, or cut-and-paste
it at the top of a new Java™ project named
BicycleDemo.
Download the linked BicycleDemoclass, or cut-and-
paste it beneath the Bicycle class in the
BicycleDemo.java file.
Optionally, review this week's Individual "Week
One Analyze Assignment," to refresh your
understanding of how to code derived classes.
Adapt the Bicycle class by cutting and pasting the
class into the NetBeans editor and completing the
following:
• Change the Bicycle class to be an abstract class.
• Add a private variable of type integer named
bicycleCount, and initialize this variable to 0.
• Change the Bicycle constructor to add 1 to the
bicycleCount each time a new object of type Bicycle
is created.

• Add a public getter method to return the current
value of bicycleCount.
• Derive two classes from Bicycle: MountainBike
and RoadBike. To the MountainBike class, add the
private variables tireTread (String) and
mountainRating (int). To the RoadBike class, add
the private variable maximumMPH (int).
Using the NetBeans editor, adapt the BicycleDemo
class as follows:
• Create two instances each of MountainBike and
RoadBike.
• Display the value of bicycleCount on the console.
Comment each line of code you add to explain what
you added and why. Be sure to include a header
comment that includes the name of the program,
your name, PRG/421, and the date.
Rename your JAVA file to have a .txt file extension.

Submit your TXT file to the Assignment Files tab.

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Resource:
• "Demonstrate the Coding to Produce Output to a
File" text file
For this assignment, you will analyze Java™ that
presents instructional text on the console, accepts

user input, and then creates a file based on that user
input.
Read the linked Java™ code carefully.
Then, answer the following questions in a
Microsoft® Word file:
• As you run the program in NetBeans the first time,
at the prompt (the program will pause for input)
type abc Return def Return ghi Ctrl+Shift+Del.
What is the result?
• As you run the program in NetBeans the second
time, at the prompt (the program will pause for
input) type 123 Ctrl+Shift +Del. What is the result?
• What happens if the file Data.txt already exists
when you run the program?
• What happens if the file Data.txt does not already
exist when you run the program?

Submit your Word file to the Assignment Files tab.
Resource:
• "Console/File Input and Output" text file
For this assignment, you will build on "starter" code
to create a Java™ program that prompts the user
for input, accepts user input, and produces both
console and file output.
Copy the linked code to a JAVA file.
Add Java® code based on the comments inside the
code.
Note: Refer to this week's Individual "Week Two
Analyze Assignment" for model code you can adapt
to meet this assignment's requirements.

Test, debug, and run your code using the NetBeans
editor to make sure it meets the program
requirements.
Save your JAVA file with a .txt extension.

Recent
recent
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Resource:
• "Console/File Input and Output" text file
For this assignment, you will build on "starter" code
to create a Java™ program that prompts the user
for input, accepts user input, and produces both
console and file output.

Copy the linked code to a JAVA file.
Add Java® code based on the comments inside the
code.
Note: Refer to this week's Individual "Week Two
Analyze Assignment" for model code you can adapt
to meet this assignment's requirements.
Test, debug, and run your code using the NetBeans
editor to make sure it meets the program
requirements.

Recent
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Resource:
• "Java Code That Sorts, Extracts Data and Saves It
To a Collection" text file
For this assignment, you will analyze code that uses
a file input stream and a file output stream.

Read through the linked Java™ code.
In a Microsoft® Word document, answer the
following questions:
• Could this program be run as is? If not, what is it
lacking?
• Does this program modify the contents of an input
stream? In what way?
• What are the results of running this code?
Submit your completed Word document to the
Assignment Files tab.

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For this assignment, you will develop"starter"code.
After you finish, your code should access an existing
text file that you have created, create an input
stream, read the contents of the text flie, sort and
store the contents of the text file into an ArrayList,
then write the sorted contents via an ouput stream to
a separate output text file.

Copy and paste the following Java™ code into a
JAVA source file in NetBeans:
import java.io.BufferedReader;
import java.io.BufferedWriter;
public class Datasort {
public static void main (String [] args) {
File fin = // input file
Filefout = // create an out file
// Java FileIn utStream class obtains input bytes
from a file
FileInputStreamfis = new FileInputStream(fin);
// buffering characters so as to provide for the
efficient reading of characters, arrays, and lines

BufferedReader in = new BufferedReader(new
InputStreamReader(fis));
// declare an array in-line, ready for the sort
String aLine;
ArrayList al = new ArrayList ();
int i = 0;
while ((aLine = in.readLine()) != null) {
// set the sort for values is greater than 0
Collections.sort(al); // sorted content to the output
file
{
System.out.println(s);

}
// close the 2 files
}
}
Add code as indicated in the comments.
Note: Refer to this week's Individual assignment,
"Week Three Analyze Assignment," and to Ch. 8,
"IO," in OCP: Oracle® Certified Professional
Java® SE 8 Programmer II Study Guide.
Run and debug your modified program in NetBeans
until it satisfies the requirements described above.
Save your finalized JAVA file with a .txt extension.

Recent
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Deadlock occurs when no processing can occur
because two processes that are waiting for each
other to finish. For example, imagine that two
processes need access to a file or database table row
in order to complete, but both processes are
attempting to access that resource at the same time.
Neither process can complete without the other
releasing access to the required resource, so the
result is deadlock.

Read and analyze code in the linked document that
spawns two different threads at the same time.
In a Microsoft® Word file, predict the results of
executing the program, and identify whether a
deadlockor starvation event will occur and, if so, at
what point in the code.
Submit your Word file to the Assignment Files tab.

Recent
recent
NEW
Resource:
• "The Locale Object" text file
For this assignment, you will develop Java™ code
that relies on localization to format currencies and
dates.
In NetBeans, copy the linked code to a file named
"Startercode.java".

Read through the code carefully and replace all
occurrences of "___?___" with Java™ code.
Note: Refer to "Working with Dates and Times" in
Ch. 5, "Dates, Strings, and Localization," in OCP:
Oracle® Certified Professional Java® SE 8
Programmer II Study Guide for help.
Run and debug your JAVA file to ensure that your
solution works.

Recent
recent
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Resource:
• "Analyze and Document JDBC API Calls" text file
For this assignment, you will analyze code that uses
the JDBC API to access a database, retrieve data,
and compose output based on that data. You will
then comment the code to reflect the purpose and
expected results of the code.

Downloadthe linkedTXT file, and read through the
Java™ code carefully.
Add your name, instructor's name, and today's date
to the header comment.
Replacethe five comment placeholderswith succinct
comments that explain and predict the results of the
Java™ statement(s) that directly follow the
comment placeholders.
Submit the updated TXT file containing your
comments to the Assignment Files tab

Recent
recent
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Resource:
• "Starter Code to Access Tables via JDBC" text file
For this assignment, you will create Java™code that
accesses a relational database, requests data, and
then analyzes and displays a portion of that data.
Imagine a MySQL relational database schema
named COMPANY_DB containing two tables,

employee_table and payroll_table, such that the
records in each of the tables is as follows:
• employee_table:
Emp id FNameLNnameAddr City State Zip
100 Jack Smith 123 North Topeka KS 66603
101 Joe Apple 4 Street Denver CO 80202
111 Nancy Good 45 SW Hartford CT 06103
121 Tom Whatever 89 NE Dover DE 19901
122 Jim Thompson 789 W 95 Albany NY 12207
123 Tommy Boyson 154 Bolt Boston MA 02201
125 John Jones 47 West Lincoln NE 68502
• payroll_table:
Emp id Paysch 401k Spouse
100 BiWk yes yes
101 BiWk yes yes
111 Monthly no no
121 Wkly pending yes
122 Wkly yes no
123 Monthly pending no
125 Monthly no yes

The credentials you will need to access the database
which holds both of the tables are as follows:
• Host string = localhost:3306
• Username = student
• Password = prg421
Copy and paste the linked Java™ "starter" code
into the NetBeans editor and save as a JAVA file.
Add Java™ statements to the file to accomplish the
following:
• Establish a connection to the database
• Query the database, joining the two tables on the
Emp_id field
• Displayyour name and today's date on the console
along with the following returned database results:
o employee identification number
o first and last name
o state
o payroll schedule
o 401k plan
• Close the database connection
Identify and correct any compile-time errors that
exist in the starter code.

Note: Because you will not be connecting to an
actual database, some compiler errors will remain.
After you finish, rename your JAVA file with a .txt
extension using the following naming convention:
•
PRG421_Week5CodingAssignment_LastnameFirstn
ame.txt.

PRG 421 Week 1 DQ 1
421/prg-421-week-1-dq-1
What is an event? How are events and graphical
user interfaces (GUIs) related? Provide an
example of an event and relate it to a GUI.

PRG 421 Week 1 DQ 2
421/prg-421-week-1-dq-2
List two advantages and two disadvantages of
using unified modeling language as a standard
for object-oriented programs.
What do you feel are the advantages and
disadvantages to using Swing versus AWT?

PRG 421 Week 1 Individual Hello World
Program
421/prg-421-week-1-individual-hello-
world-program
Design, implement, test, and debug a GUI-based
version of a “Hello, World!” program.
Create a JFrame that includes a JLabel that reads
“Hello, World!”
Use a layout manager of your choice.
Include an Exit button to close the program.
Submit the .java source file.

PRG 421 Week 1 Individual Singleton Pattern
Program Recent
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PRG 421 Week 1 Individual Singleton Pattern
Program NEW
Write a Java program (non-GUI preferred) to
demonstrate the Singleton pattern.

The key parts of the singleton pattern
are:
A private static variable to store the single
instance called the singleton
A public static method for callers to get a
reference to the instance
A private constructor so no callers can instantiate
the object directly
Using these key parts,

write a Java program that will allow a user of the
program to assign only one
runner to each of the 8 lanes of running track in a
field.
Include a brief documentation (in the code or in a
separate document) to explain
the input (if any), processing and output of the
program.
Submit your assignment using the Assignment Files
tab above.

PRG 421 Week 2 DQ 1
421/prg-421-week-2-dq-1
How do arrays and combo boxes work together?
Write a small program in which you add the
elements of an array to a combo box and post the
code for your program.

PRG 421 Week 2 DQ 2
421/prg-421-week-2-dq-2
What are advantages of using menus in a GUI
application? Design a menu structure for a
program you would find useful in your work or
hobbies. Write and post the code for the menu
creation.

PRG 421 Week 2 Individual Array List Program
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PRG 421 Week 2 Individual Array List Program
NEW
demonstrate the use of an Array List.
The program should allow a user to do the
following:

Add, edit, delete different types of animals
Select an animal, and the corresponding
characteristics will be displayed (such as color,
vertebrate or
invertebrate, can swim, etc.)
The program must use ArrayList(s) to work with
these
animal objects.
program.
tab above.

PRG 421 Week 2 Individual GUI Components
Program Payroll App
421/prg-421-week-2-individual-gui-
components-program-payroll-app
• Option 2: Payroll Application
Read the instructions in the University Material:
GUI Components Program located on the student
website and select one option to complete the
assignment.

PRG 421 Week 3 DQ 1
421/prg-421-week-3-dq-1
Think of a programming task - other than the
individual or team assignments in this course - in
which you would choose to use an exception
handler. Write the code for the try-catch block.
Explain the activity and your code.

PRG 421 Week 3 DQ 2
421/prg-421-week-3-dq-2
What are the advantages and disadvantages of
sequential and random access files?
Provide an example in which a sequential file is a
better choice than a random access file. Explain
why.
Provide an example in which a random access
file is better than a sequential file. Explain why.

PRG 421 Week 3 Individual Contact Information
Program
421/prg-421-week-3-individual-contact-
information-program
This is a two-part assignment.
Part 1
Design, implement, test, and debug a program
with a JFrame that allows the user to enter a

series of contacts’ names, ages, e-mail addresses,
and cell phone numbers, and creates a file from
the entered data. Validate the age entry to
ensure that it is numeric and between 0 and 120.
Include information for three to five contacts.
Part 2
Design, implement, test, and debug a program
that reads the file you created by the list in Part
1 and displays the records in a JFrame. You may
either display all entries in the list at once or
display them one at a time; the user interface is
up to you. Protect against not being able to open
the file.
Submit the .java source files.

PRG 421 Week 3 Individual Iterator Program
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PRG 421 Week 3 IndividualIterator Program NEW
demonstrate the use of Iterator.
following:

Allow the reading of a collection of animal objects
from an external file.
Output on screen the content of a collection of
animal objects.
Use Iterator to achieve these goals.
program.
tab above.

PRG 421 Week 3 Learning Team Initial program
421/prg-421-week-3-learning-team-initial-
program
Create a GUI-based program to accept name of
donor, name of charity, and amount of pledge
from the user.
Display a list of entries in a JTextArea or JTable.
Submit the .java source file for this program.

PRG 421 Week 4 DQ 1
421/prg-421-week-4-dq-1
What are three ways Java® applets enhance
network security? Describe how each is used and
how it affects security.

PRG 421 Week 4 DQ 2
421/prg-421-week-4-dq-2
How would you differentiate a website that uses
a Java® applet from one that uses JavaScript®
code? Locate a website that includes a Java®
applet and provide its URL

PRG 421 Week 4 Individual JDBC Program Recent
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PRG 421 Week 4 Individual JDBC Program NEW
demonstrate
the use of JDBC.
following:
Write a list of animal and its characteristics to a

database using JDBC
Display the characteristics of an animal when that
animal is selected.
program.
tab above.
Note from Instructor:
To assist, I have included a demo file
“JavaDB week 4 Demo code” of a database and
installation

instructions.
PLEASE USE THIS DEMO DATABASE. I have
had
students want to use other database engines and it
makes it very difficult when that happens. This is
not a class in different databases, but just how to
connect Java to a database, and thus we are going to
use the simplest one
possible, mySQL.

PRG 421 Week 4 Individual Pie Chart Applet
421/prg-421-week-4-individual-pie-chart-
applet
Write an applet that includes a pie chart.
Use a news article with statistics that are good
candidates for a pie chart: for example, political
candidate preferences; percentages of those for,
against, or undecided about a ballot measure;
and so forth.
Cite the source for your input statistics.

Submit the applet along with an HTML file to
launch it.

PRG 421 Week 5 DQ 1
421/prg-421-week-5-dq-1
Conduct an Internet search for JavaDB tutorial.
You may choose to use either a text-based or a
video tutorial. Follow the steps in the tutorial to
learn how to use JavaDB.
Modify one of the demo programs with the
JavaDB download to create and manipulate your
own database.

PRG 421 Week 5 DQ 2
421/prg-421-week-5-dq-2
What type of mobile app would you find useful?
What steps would you take to create and deploy
this app?

PRG 421 Week 5 Individual Concurrent
Programming Recent
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PRG 421 Week 5 Individual Concurrent
Programming NEW
Writea Java program (non-GUI preferred) that has
a method named atomic().
Demonstrate in the program how two threads can,
sometimes, invoke atomic() concurrently.
Create a secondversionof the program in which the
two threads cannot invoke atomic concurrently.

Submit both programs using the Assignment Files
tab above.
To assist, I have included a demo file of a multi-
thread program. Remember that the ideal program
demonstrates threading in action.

PRG 421 Week 5 Learning Team Connect to a
Database
421/prg-421-week-5-learning-team-
connect-to-a-database
Write a program to create a database from the
data in the sequential file you created in Week
Four.
Modify the GUI to connect to this database and
add entries to it and read entries from it. Entries
read from the database should be displayed in
the JTextArea or JTable.
Test and debug this final program.

Submit the .java source file or files.

PRG 421 Entire Course NEW

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