Lab 14 - Exception Handling 1. Download the files DaysPerMonth.java and lab14Data.txt. This class is designed to determi

[answerhappygod]

Lab 14 - Exception Handling
1. Download the files DaysPerMonth.java and lab14Data.txt. This
class is designed to
determine the number of days in a month if provided a file with
months (as a number) and
corresponding years.
2. Modify the program so that the filepaths for the input and
output files are read in as command line
arguments. The output filename is lab14Output.txt.
3. If no command line arguments are provided, the program will
prompt the user to input filepaths
for both the input and output files.
4. Once the program has obtained the filepaths, create File objects
from those filepaths, then call
processFile, passing the created File objects as arguments.
5. In processFile, write code to handle a bad input or output
filename. If you receive a bad filename,
the code will print “Bad File Name” to the console and the program
will terminate gracefully.
6. After verifying the filepaths are correct, processFile will read
in the data from the inputFile,
which is separated by commas, one row at a time using a while loop.
For each line, it will take the
month and year values, pass them as arguments to the getDays
method, then write the following
String to the output file: “There are x days in this month” where x
is replaced with the number
of days in the given month.
7. Once all statements are written to the output file, you will
close the file and end the program.

At this
point, your program should be able to read lab14Data.txt without
error.
8. Modify processFile so that it fully validates the input and
outputs the results to the output file.

If the
month or year isn’t an integer, the program must write the message
“Not an
integer” to the output file.

If the
month isn’t between 1 and 12, the program must write the message
“Month must
be between 1 and 12” to the output file.

If the
year is less than 0, the program must write the message “Year
cannot be
negative” to the output file.

In each
case the program must continue to process the input. Please do not
overuse
exceptions. If statements can handle some of this.
9. You can use the file lab14BadData.txt to test your error
handling.
10. Test your code with the Lab14Test.java JUnit test.
11. Once all tests cases pass, upload your file, DayPerMonth.java
to Gradescope and your
screenshot of the test cases passing to Cnavas to earn points for
this lab