INHERITANCE AND POLYMORPHISM - Java Programming: From Problem Analysis to Program Design - page 691

A sample input file follows:
3 345
Lisa Miller 890238 Y 4
Mathematics MTH345 4 A
Physics PHY357 3 B
ComputerSci CSC478 3 B
History HIS356 3 A
.
.
.

The first line indicates that 3 students are enrolled and the tuition rate is $345 per credit
hour. Next, the course data for student Lisa Miller is given: Lisa Miller's ID is
890238 , she has paid the tuition, and is taking 4 courses. The course number for the
mathematics class she is taking is MTH345 , the course has 4 credit hours, her mid-
semester grade is A , and so on. The output of the program is of the following form:

Student Name: Lisa Miller
Student ID: 890238
Number of courses enrolled: 4

Course No Course Name Credits Grade

CSC478 ComputerSci 3 B

HIS356 History 3 A

MTH345 Mathematics 4 A

PHY357 Physics 3 B

Total number of credit hours: 13
Midsemester GPA: 3.54

1
0

It is clear from this output that the courses must be ordered according to the course
number. To calculate the GPA, we assume that the grade A is equivalent to 4 points,
B is equivalent to 3 points, C is equivalent to 2 points, D is equivalent to 1 point, and
F is equivalent to 0 points.

Input: A file containing the data in the form given previously. For easy reference in
the rest of the discussion, let's assume that the name of the input file is

stData.txt .

Output: A file containing the output of the form given previously.

We must first identify the main components of the program. The college or
university has students, and every student takes courses. Thus, the two main compo-
nents are the student and the course.
Let's first describe the component Course .

PROBLEM
ANALYSIS AND
ALGORITHM
DESIGN

Course