COS10007: Developing Technical Software - Array of Bus Structure - IT/Computer Science Assignment Help

Assignment Task:

Section A 

Question 1. 

Students’ grade details in a semester are kept in a text file. The data for each student contains name of the student, student Id, name of course, number of units and marks for these units. Each student is doing a different number of units in that semester, the maximum number of units that a student can do is limited to 4. A small segment of the grade book data might look like the following.

You have to create a LinkedList using the above self-referential structure and read the contents of the text file into LinkedList. Each node of the LinkedList contains details of one student. Implement all functionalities mentioned below: 

The main()function handles all interactions with the user and other functions: 

• It displays an appropriate welcome message introducing the program. 

• Calls a function named read_file()which opens a text file students.txt(a sample text file is shown above) for reading and storing all of the students details from the file to a LinkedList in order of name (insertion should happen in alphabetical order). The students.txt contains name of student (name), student id (id), course name (course_name), number of units (no_of_units), marks for these units (marks[4]). Maximum number of units limited to 4. Calculation of average mark and assignment of average to avg element of the structure can be done in this read_file itself (you are free to write a separate function for this purpose). 

• It then repeatedly calls the menu()function to display user options, get the user selection returned by the menu() function, use a switch (or if ..else if) statement to process user request by calling appropriate function(s). 

• It displays the result with an appropriate message after processing user request. 

• It displays a goodbye message when the user selects the Quit option from the menu and terminates the program. 

The menu()function has no parameters. When called, it displays a menu of 6 options allowing the user to select one and returns this option to the calling main()function. The options displayed should be: (1) Display students’ details (2) Search for a student’s mark (3) Find the details of student with the largest average (4) Find the details of failed students (5) Add new student to the record (6) Quit program 

• Option (1) will use a function called display_students()called from the main()to display the contents of the LinkedList on the screen in an appropriate format. 

• Option (2) will use a function called search_student()which is designed to search for a student. Display all the details of that student, if no such student is found report it back to the user. 

• Option (3) will use a function called find_maximum()which is designed to find the details of student having the largest average marks in the LinkedList. Display all the details of that student. 

• Option (4) will use a function called find_failed()which is to find the students who received a fail grade (student with a mark less than 50) for at least one unit. Display all the details of these students.

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