IN JAVA PLEASE

In the course menu of the final project, don't delete class if a student is enrolled in it$.$ That is: when the user chooses the option to delete a class, print something like:

"Student$($s$)$ are enrolled in that class...Sorry class can't be deleted" when there is a least one student in that class.

$---------------------------------------------------$

Main Menu

$1$ : Student Management

$2$ : Course Management

$0$ : Exit

Enter your selection: $1$

$-----------------$

Student Management Menu:

Choose one of:

A $-$ Search add a student

B $-$ Delete a Student

C $$ Print Fee Invoice

D $$ Print List of Students

X $$ Back to Main Menu

Enter your selection: D

PhD Students

$------------$

$-$ Zydoun BenSellam

$-$ Erica Belksiri

MS Students

$------------$

$-$ Caleb Sidi Kacem

$-$ Erika Jones

$-$ Walid Wali

Undergraduate Students

$------------$

$-$ Ed Johnson

$-$ Willian Jones

$-$ Kirby Sons

Student Management Menu:

Choose one of:

A $-$ Search add a student

B $-$ Delete a Student

C $$ Print Fee Invoice

D $$ Print List of Students

X $$ Back to Main Menu

Enter your selection: A

Enter Student$$s ID: ew$44-$yye

Invalid id format or ID already exists

Try again later!

Student Management Menu:

Choose one of:

A $-$ Search add a student

B $-$ Delete a Student

C $$ Print Fee Invoice

D $$ Print List of Students

X $$ Back to Main Menu

Enter your selection: A

Enter Student$$s ID: zb$5954$

Student Type $($PhD$,$ MS or Undergrad$)$: PhD

Enter Remaining information

Zaydoun BenSellam$|$Gary Richardson$|$Fuzzy Toplology$|20300,94442$

$($No need to check anything: we assume that the user enter valid information, including lab numbers!$)$

$[$ Zaydoun BenSellam $]$ added!

Student Management Menu:

Choose one of:

A $-$ Search add a student

B $-$ Delete a Student

C $$ Print Fee Invoice

D $$ Print List of Students

X $$ Back to Main Menu

Enter your selection: X

$---------------------------------------------------$

Main Menu

$1$ : Student Management

$2$ : Course Management

$0$ : Exit

Enter your selection: $0$

Take Care!

Understanding the structure of lec.txt

Each line in lec.txt represents a class being offered at Valence College.

A class is either a lecture $($LEC$)$ or a lab $($LAB$).$ A lecture $($LEC$)$ is characterized

by:

$-$ Class Number $($CN$),$ a unique five$-$digit number assigned for each lecture$/$lab

$-$ Prefix $($like COP$3330)$

$-$ Title $($like Introduction to Object Oriented Programming$)$

$-$ Location $($like CB $2-201)$

$-$ Graduate or undergraduate.

$-$ Modality: Online, Face$-$to$-$Face$($F$2$F$)$ or Mixed Mode $($Mixed$)$

$-$ If Modality is F$2$F or Mixed, then the following entry is the location where that

class is taking place. The next YES$/$NO field is to specify whether that class

has a lab or not. When a non$-$online class has a lab, the labs are listed right

after. See below for more information about the labs. Online sections don$$t have

labs.

$-$ Credit hours is the last field of any lecture.

Examples:

$89745,$COT$6578,$Advanced Computer theory,Graduate,F$2$F$,$PSY$-108,$No$,4$

$32658,$COT$6578,$Advanced Computer theory,Graduate,Mixed,LPS$-35,$No$,4$

That means that the college offers two sections of COT$6578,$ one is F$2$F and the other

is online. Both of those sections don$$t have labs.

When a lecture has a lab, the labs$$ information is provided

right after the lecture information

Example:

$69745,$COP$5698,$ Programming Languages,Graduate,F$2$F$,$CB$2-122,$YES,$4$

$19745,$MSB$-123$

$36598,$PSY$-100$

$20315,$HSA$1-116$

That means the COP$5698$ with cn $69745$ has three labs. $19745,36598$ and $20315$ are the

cns of the labs. MSB$-123,$ PSY$-100$ and HSA$1-116$ are the building$-$room numbers where

those labs are scheduled to take place.

Note that if the Modality is Online, then the line of the

lec.txt has the form:

CN$,$PREFIX,LECTURE TITLE,GRADUTE$/$UNDERGRADUTE$/$ONLINE$,$CREDIT HOURS

Example:

$36636,$SOF$2058,$Introduction to Software,Undergraduate,Online,$3$