Module Six Assignment Guidelines and Rubric.html Overview Many Java programs that you create will receive and process user input. In order to ensure that user input is accurate, you will need to use input validation and exception handling. For example, if you ask for a zip code, you want to ensure the user inputs a five-digit number. In this activity, you are given “buggy” code for a paint program that calculates the number of cans of paint required to paint a wall, given the wall’s height and width. You will need to debug the code and improve it by adding code to validate user input and handle exceptions. Prompt For this assignment, you will complete the paint program by debugging the original code and adding code that validates user input and handles exceptions. Use the Uploading Files to Eclipse and the Downloading Files From Eclipse tutorials to help you with this project.DebuggingOpen the Virtual Lab by clicking on the link in the Virtual Lab Access module. Then open your IDE. Upload the Paint1.zip folder and review the code for the Paint1.java file.Find and fix the three errors in the given code.Use the input values below to test your program. If you found and fixed all errors, your output should exactly match what is below. TIP: When you run your program in Eclipse, it will prompt you to enter input in the Console window. If you cannot find this window, go to Window, then Show View, then Console. Input Validation and Exception HandlingReview the code, looking for the two code blocks where user input is required.Implement a do-while loop in both blocks of code to ensure that input is valid and any exceptions are handled. TIP: Consider using a try-catch block for exception handling, but it is not required.Use the two sample invalid inputs below to test your program. Your program should respond to each by prompting the user to enter valid input. This should continue to loop until valid input is received. THINK: Why is 0 invalid input for this problem? What is the user being asked to input? Guidelines for Submission Attach your completed Paint1.java file to the assignment submission page. Module Six Assignment RubricCriteriaProficient (100%)Needs Improvement (75%)Not Evident (0%)ValueDebuggingDebugs a class so that no errors remain and calculations work correctlyMeets some “Proficient” criteria, but with errors or exclusions such as one or two remaining bugsDoes not attempt criterion30Input Validation and Exception HandlingAdds loops to validate all user input and handle exceptions so that code passes all test casesMeets most “Proficient” criteria, but with errors; areas for improvement may include ability to handle all test casesDoes not attempt criterion70Total:100% course_documents/Uploading Files to Eclipse Tutorial.pdf Uploading Files to Eclipse This tutorial will guide you through the process of uploading a project into Eclipse via the STEM Lab. 1. Open the STEM Lab and select the Launch button for the Java Program ...

1. Module Six Assignment Guidelines and Rubric.html
Overview
Many Java programs that you create will receive and process
user input. In order to ensure that user input is accurate, you
will need to use input validation and exception handling. For
example, if you ask for a zip code, you want to ensure the user
inputs a five-digit number. In this activity, you are given
“buggy” code for a paint program that calculates the number of
cans of paint required to paint a wall, given the wall’s height
and width. You will need to debug the code and improve it by
adding code to validate user input and handle exceptions.
Prompt
For this assignment, you will complete the paint program by
debugging the original code and adding code that validates user
input and handles exceptions. Use the Uploading Files to
Eclipse and the Downloading Files From Eclipse tutorials to
help you with this project.DebuggingOpen the Virtual Lab by
clicking on the link in the Virtual Lab Access module. Then
open your IDE. Upload the Paint1.zip folder and review the
code for the Paint1.java file.Find and fix the three errors in the
given code.Use the input values below to test your program. If
you found and fixed all errors, your output should exactly match
what is below.
TIP: When you run your program in Eclipse, it will prompt you
to enter input in the Console window. If you cannot find this
window, go to Window, then Show View, then Console.
Input Validation and Exception HandlingReview the code,
looking for the two code blocks where user input is
required.Implement a do-while loop in both blocks of code to
ensure that input is valid and any exceptions are handled.

2. TIP: Consider using a try-catch block for exception handling,
but it is not required.Use the two sample invalid inputs below to
test your program. Your program should respond to each by
prompting the user to enter valid input. This should continue to
loop until valid input is received.
THINK: Why is 0 invalid input for this problem? What is the
user being asked to input?
Guidelines for Submission
Attach your completed Paint1.java file to the assignment
submission page.
Module Six Assignment RubricCriteriaProficient (100%)Needs
Improvement (75%)Not Evident (0%)ValueDebuggingDebugs a
class so that no errors remain and calculations work
correctlyMeets some “Proficient” criteria, but with errors or
exclusions such as one or two remaining bugsDoes not attempt
criterion30Input Validation and Exception HandlingAdds loops
to validate all user input and handle exceptions so that code
passes all test casesMeets most “Proficient” criteria, but with
errors; areas for improvement may include ability to handle all
test casesDoes not attempt criterion70Total:100%
course_documents/Uploading Files to Eclipse Tutorial.pdf
Uploading Files to Eclipse
This tutorial will guide you through the process of uploading a
project into Eclipse via the STEM Lab.
1. Open the STEM Lab and select the Launch button for the
Java Programming app. The virtual

3. environment can take a couple of minutes to load.
2. Once the STEM Lab opens, be sure your browser window is
in full-screen mode. Select the
upload icon on the STEM Lab tool bar.
3. In the File upload window, select a destination folder by
clicking the Upload button. This is
where the file will appear when you upload it. For this example,
we will select Desktop.
4. Next, you are provided with a File Upload dialog box.
Navigate to and select the file you want to
upload. Then, click the Open button. In this example, we’ve
selected the studentproject.zip file.
5. Once the file uploads, it will be listed in the File Upload
window and in the destination folder
you selected. In this example, the studentproject.zip file appears
in the File upload window, and
the destination folder is the Desktop.

4. 6. Close the File upload dialog window.
7. Locate the studentproject.zip folder. In this case, it is saved
on the Desktop. Right-click on the
folder and select Extract All…
8. This will bring up a dialog box asking you to select a
destination for your extracted files. In this
example, the default location is the Desktop. Click Extract,
which will create an unzipped folder
in the destination you have selected.
9. Next, open Eclipse by double-clicking the Eclipse icon
located on the Desktop.
10. Select the Launch button in the Eclipse Launcher window to
open Eclipse.

5. 11. From the File menu, select Open Projects from File System.
This will open up a dialog window.
12. You will use the Import dialog window to navigate to the
project you uploaded. Next to the
Import Source text box, click the Directory… button to browse
for your project folder.
13. In the dialog box, navigate to the destination folder where
you uploaded your project. In this
example, the destination folder is the Desktop. Select your
project folder and click the OK
button.
14. After selecting the file to import, you should see the
folder’s address in the Import Source
textbox. Select the Finish button in the Import dialog window.

6. 15. To access the project files, navigate to the Package Explorer
workspace. You can view and open
your project files in this workspace.
a) In the Package Explorer workspace, click on the arrow next
to the project folder to view the
files. In this example, the folder is called studentproject.
b) To open your files in the Package Explorer workspace and
begin working, double-click on
each class file. Each file will have its own tab, so you can
easily switch back and forth
between them. Your project is now in Eclipse and ready for you
to use!
course_documents/Paint1.zip
Paint1.javaPaint1.javaimport java.util.Scanner;
publicclassPaint1{
publicstaticvoid main(String[] args){
Scanner scnr =newScanner(System.in);
double wallHeight =0.0;
double wallWidth =0.0;
double wallArea =0.0;
double gallonsPaintNeeded =0.0;
finaldouble squareFeetPerGallons =350.0;

7. // Implement a do-while loop to ensure input is valid
// Prompt user to input wall's height
System.out.println("Enter wall height (feet): ");
wallHeight = scnr.nextDouble();
// Implement a do-while loop to ensure input is valid
// Prompt user to input wall's width
System.out.println("Enter wall width (feet): ");
wallHeight = scnr.nextDouble();
// Calculate and output wall area
wallArea = wallHeight * wallWidth;
System.out.println("Wall area: square feet");
// Calculate and output the amount of paint (in gallons) needed t
o paint the wall
gallonsPaintNeeded = wallArea/squareFeetPerGallons;
System.out.println("Paint needed: "+ gallonspaintneeded +" gall
ons");
}
}
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