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.
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.
THINK: Why is 0 invalid input for this problem? What is the user being asked to input?
Attach your completed Paint1.java file to the assignment submission page.
CriteriaProficient (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%
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