C$.$ Write a class called LibrarySystem having the following data members:

booksList: list of books $-$ LinkedList object, each element is of type Book, membersList: $\backslash (\backslash$quad $\backslash )$ list of members $-$ LinkedList object, each element is of type LibMember, booksListSize: actual number of objects of type Book in booksList, membersListSize: actual number of objects of type LibMember in membersList. Include following methods in this class:

$($i$)$ Constructor without any parameters. Create booksList and membersList as empty linked lists and initialize booksListSize and membersListSize to $0.$

$($ii$)$ addBook: inserts a new Bookobject at the end of the booksList. Object of type Book is passed as parameter. If the object already exists in the list, then do not add the object and return false, else return true after successfully adding the Book.

$($iii$)$ deleteBook: deletes a Book object from booksList. Accession number of the Book is passed as parameter. If the Book is issued to a member or the object is not found in the

booksList, then the Book cannot be deleted and the method returns false, else the method returns true, after successfully deleting the object.

$($iv$)$ addMember: inserts a new LibMember object at the end of the membersList. Object of type LibMember is passed as parameter. If the object already exists in the list, then do not add the object and return false, else return true after successfully adding the member.

$($v$)$ deleteMember: deletes a LibMember object from membersList. CPR number of the LibMember is passed as parameter. If any Book is issued to the member or the object is not found in the membersList, then the member cannot be deleted and the method returns false, else the method returns true, after successfully deleting the object.

$($vi$)$ searchBook: searches the booksList by accessionNum, passed as parameter. If the object is found, it returns its location in the booksList, else returns $-1.$

$($vii$)$ searchMember: searches the membersList by cprNum, passed as parameter. If the object is found, it returns its location in the membersList, else returns $-1.$

$($viii$)$ isEmptyBooksList: returns true if the booksList is empty, else returns false.

$($ix$)$ isEmptyMembersList: returns true if the membersList is empty, else returns false.

$($x$)$ sizeBooksList: returns instance variable booksListSize.

$($xi$)$ sizeMembersList: returns instance variable membersListSize.

$($xii$)$ issueBook: accepts accession number of a Book as the first parameter and the CPR number of the member as the second parameter. The Book can be issued to a member only if:

$($a$)$ The Book exists in the booksList,

$($b$)$The member exists in the membersList,

$($c$)$ The Book is not issued to any member,

$($d$)$ The member has less than $10$ books issued to him$/$her$.$

If the book can be issued to a member, then add the Book object in the bookslssued array for the member, increment numBookslssuedby $1$ for the member and also make issuedTo instance variable of the Book object reference to the member and return true. If the Book cannot be issued then return false.

Note that there will be cross referencing between the book and the member.

$($xiii$)$ returnBook: accepts accession number of a Book as the parameter. The Book can be returned only if:

$($a$)$ The Book exists in the Books list,

$($b$)$ The Book is issued to a member.

If the Book can be returned, then delete it from bookslssued array for the member, decrement numBookslssued by one for the member and also make issuedTo instance variable of the Book object to null and return true. If the Book cannot be returned, then return false.

$($xiv$)$ printBookslssued: accepts CPR number of a member as a parameter and prints details of all the books issued to the member.

$($xv$)$ isBooklssued: accepts accession number of the Book as parameter. It returns true if the Book object exists in the bookList and is issued to a member, else returns false.