Lab Practice $7$: Data Structures and Files

Write a program that simulates a school database to manage the following information $($use a data structure to store the info$)$:

$-$ Student ID

Student Name

$-$ Major

$-$ IQ $($Intelligence quotient$)$

$-$ Address

$-$ Phone number

$-$ GPA

Your program will display the following menu $($use a void function for the menu and functions for each option$)$:

a$.$ Register student.

b$.$ Delete student.

c$.$ Update student.

d$.$ Print student.

e$.$ Exit.

Option a: Ask for the student: ID$,$ name, major, IQ$,$ address, phone number, and GPA. Duplicate student IDs are not allowed. The student's file will be created at this time and it will be named $"\backslash$#$\backslash$#$.$tst$,"$ where $\backslash$#$\backslash$# represents the student's ID$.$ Register ONE student at a time.

Option b: Ask for student ID$,$ then delete that student. To delete the student file, you will use the function filesystem:remove$($fileName$)$ which requires you to $\backslash$#include $.$ For this function to work,

you need to change $\backslash (\backslash$mathrm$\{$C$\}++\backslash )$ to at least $\backslash (\backslash$mathrm$\{$C$\}++17\backslash ).$ You may find that if you close the program without deleting a student, that the file is saved into the compiler. At this point, attempting to delete the file by selecting option b will not work. Do not worry about this, you will not be marked off.

Option c: Ask for student ID$,$ then present the following submenu:$|$

a$.$ Update name

b$.$ Update major

c$.$ Update IQ

d$.$ Update address

e$.$ Update phone number

f$.$ Update GPA

g$.$ Exit

You must be able to update existing files even ones that existed prior to the code being run.

Option d: Ask for student ID$,$ then print that student's info from their file.

Option e: Exit.

Validate your program so that it DOES NOT accept negative values for ID$,$ IQ$,$ and GPA. Your menus MUST use switch cases and MUST handle invalid inputs. You may also include an additional, hidden menu option which prints all students from your data structure.