PRG 421 Entire Course NEW Flashcards
PRG 421 Entire Course NEW Check this A+ tutorial guideline at https://www.uopassignments.com/prg-421 For more classes visit http://www.uopassignments.com
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 Individual Week 2 Coding Assignment
PRG 421 Individual Week 2 Analyze Assignment
PRG 421 Individual Week 3 Analyze Assignment
PRG 421 Individual Week 3 Coding Assignment
PRG 421 Individual Week 4 Coding Assignment
PRG 421 Individual Week 4 Analyze Assignment
PRG 421 Individual Week 5 Coding Assignment
PRG 421 Individual Week 5 Analyze Assignment
PRG 421 Entire Course
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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
PRG 421 Individual Week 1 Analyze Assignment Recent
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PRG 421 Individual Week 1 Analyze Assignment NEW
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, customer number, 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-related activities, 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
PRG 421 Individual Week 1 Coding Assignment Bicycle Demo Recent
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PRG 421 Individual Week 1 Coding Assignment 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 abstract Bicycle class that contains private data relevant to all types of bicycles (cadence, speed, and gear) in addition to one new static variable: bicycleCount. The private data 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.
PRG 421 Individual Week 2 Analyze Assignment Recent
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PRG 421 Individual Week 2 Analyze Assignment NEW
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.
PRG 421 Individual Week 2 Coding Assignment
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.
Submit your TXT file to the Assignment Files tab.
PRG 421 Individual Week 2 Coding Assignment Recent
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PRG 421 Individual Week 2 Coding Assignment NEW
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.
Submit your TXT file to the Assignment Files tab.
PRG 421 Individual Week 3 Analyze Assignment Recent
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PRG 421 Individual Week 3 Analyze Assignment NEW
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.
PRG 421 Individual Week 3 Coding Assignment Recent
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PRG 421 Individual Week 3 Coding Assignment NEW
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.
Submit your TXT file to the Assignment Files tab.
PRG 421 Individual Week 4 Analyze Assignment Recent
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PRG 421 Individual Week 4 Analyze Assignment NEW
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 deadlock or starvation event will occur and, if so, at what point in the code.
Submit your Word file to the Assignment Files tab.
PRG 421 Individual Week 4 Coding Assignment Recent
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PRG 421 Individual Week 4 Coding Assignment 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.
Save your JAVA file with a .txt extension.
Submit your TXT file to the Assignment Files tab.
PRG 421 Individual Week 5 Analyze Assignment Recent
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PRG 421 Individual Week 5 Analyze Assignment NEW
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.
Download the linked TXT file, and read through the Java™ code carefully.
Add your name, instructor’s name, and today’s date to the header comment.
Replace the five comment placeholders with 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
PRG 421 Individual Week 5 Coding Assignment Recent
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PRG 421 Individual Week 5 Coding Assignment NEW
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
• Display your 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_LastnameFirstname.txt.
Submit your TXT file to the Assignment Files tab.
PRG 421 Week 1 DQ 1
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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
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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
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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
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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
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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 Recent
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PRG 421 Week 2 Individual Array List Program NEW
Write a Java program (non-GUI preferred) to
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.
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 Individual GUI Components Program Payroll App
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• 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
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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
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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
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For more classes visit http://www.uopassignments.com 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 Recent
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PRG 421 Week 3 Individual Iterator Program NEW
Write a Java program (non-GUI preferred) to
demonstrate the use of Iterator.
The program should allow a user to do the 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.
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 3 Learning Team Initial program
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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
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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
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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
Write a Java program (non-GUI preferred) to demonstrate
the use of JDBC.
The program should allow a user to do the 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.
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.
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
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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
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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
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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
Write a 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 second version of 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
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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.
