Students Needing Help

(Reading and Writing Text Files)

Write a program that will read in a file of student academic credit data and create a list of students on academic warning. The list of students on warning will be written to a file. Each line of the input file will contain a student name (a single String with no spaces), the number of semester hours earned (an integer), the total quality points earned (type double) during those semesters. The following shows part of a typical data file:

     Smith 27  83.7
     Jones 21  28.35
     Walker 96 182.4
     Doe 60 150

For this assignment a GPA is defined as the number of quality points earned, divided by the number of semester hours during which those points were earned. (In case you are wondering, "quality points" are the grade obtained for a course on a 4-point scale times the number of credits earned for that course.) A student should be on academic warning if he/she has a GPA less than 1.5 for students with fewer than 30 semester hours credit, 1.75 for students with at least 30 but fewer than 60 semester hours credit, and 2.0 for all other students (i.e., those with at least 60 hours). The program should compute the GPA for each student then, if that student should be put on academic warning, write the student information to the output file. The file Warning.java contains a skeleton of the program. Do the following:

1. Look at the comments containing "===", as well as the header comments of the methods.
2. Complete the implementation of openFiles(). Test it by running the program. If all is well, the program should create a file named "warning.txt" that contains ony the header output (see lines 59-61.) Copy the output into the lab document.
3. Complete the implementation of shouldBeOnWarning(). Test it by adding debugging code to main() that simply calls shouldBeOnWarning() at least four times, once for each of the possible test cases: student with < 30 hours, between 30 and 60, and more than 60, with quality hours that should result in the the students in or out of academic warning. Copy the output into the lab document.
4. Comment-out the debugging code from step 3 (don't delete it).
5. Complete generateReport. You might want to add a debugging statement that prints the values as you read them from the input file.
6. Test the program. Test data is in the file students.txt. Your program should generate output similar to that in warning.txt.
7. Once you believe your program is working properly, you can comment-out the debugging code from step 5.