Question

NEED IN JAVA

Problem statement.

This application will support the operations of a technical library for an R&D organization. This includes the searching for and lending of technical library materials, including books, videos, and technical journals. Users will enter their company ids in order to use the system; and they will enter material ID numbers when checking out and returning items.  

Each borrower can be lent up to five items. Each type of library item can be lent for a different period of time (books 4 weeks, journals 2 weeks, videos 1 week). If returned after their due date, the library user's organization will be charged a fine, based on the type of item ( books $1/day, journals $3/day, videos $5/day).

Materials will be lent to employees with no overdue lendables, fewer than five articles out, and total fines less than $100.  

R & D Library 
books
UnderstandingMathematics 0015B
EngineeringAsAService 0012A
FundamentalAlgorithms 0008A
BigJava 0019C
SortingAndSearching 0071A
MathematicalComputations 0004B
journals
FeasibilityOfTheWeb X980
StudyOfAComet X324
ACaseStudyOfBehavioralActions X234
HowToKeepAJob X210
XgonGiveItToYa X821
videos
TedTalkSeries 12.W
LectureSeries 16.S

1. You will write classes from the last in-class assignment, R&DLibrary. R&DLibrary is the main file in which a user can choose to enroll themselves, check out an item, return an item, pay a fine and display their account (what is currently checked out, accumulated fines).
2. Write a material class that calculates the fine based off of the type of item, the length it’s been checked out and whether or not it’s even been checked out.
3. Lastly, write a employee Class that contains the username of a user, the items that person has checked out, a copy of the accumulated fines and the number of items checked out.
4. Create the program using repl.it online IDE and saving it to a files named, R&DLibrary.java, Employee.java, MaterialCard.java.
5. Download all the files from repl.it.
6. At the top of the empty file, write the following comment, modifying it to reflect your personal in- formation. Writing these comments on top of your programs helps other developers understand basic information about your programs and is a good habit to develop.

7. /*

   * Program: LibraryReservation.java

   *

   * Author 1: FULL NAME

   *

   * Date:   THE CURRENT DATE

   * Course:  

   *

   * Program Description:

   *

   * WRITE PROGRAM DESCRIPTION

   *

   */

Answer 1

MaterialCard Class:

class MaterialCard{
    private String books[];
    private String journals[];
    private String videos[];
    private int totalFine;
    private int b;
    private int j;
    private int v;
    public MaterialCard(String books[],String journals[],String videos[]){
        this.books=books;
        this.journals=journals;
        this.videos=videos;
    }
    public String[] getBooks(){
        return books;
    }
     public String[] getJournals(){
        return journals;
    }
     public String[] getVideos(){
        return videos;
    }
    public void dueDates(int b,int j,int v){
        this.b=b;
        this.j=j;
        this.v=v;
    }
    public int getFine(){
        totalFine=books.length*b*1+journals.length*j*3+videos.length*v*5;
        return totalFine;
    }
}

Employee Class:

class Employee{
    private String userName;
    private int noOfItems;
     private int totalFine=0;
    public Employee(String userName,int noOfItems){
        this.userName=userName;
        this.noOfItems=noOfItems;
    }
    public String getUserName(){
        return userName;
    }
    public int getNoOfItems(){
        return noOfItems;
    }
    public void setEmplyoeeFine(){
        this.totalFine=totalFine;
    }
}

Main class: R&DLibrary

public class RDLibrary{
        public static void main(String[] args) {
            Scanner sc=new Scanner(System.in);
         System.out.println("Welcome to library");
         System.out.print("Enter your name:");
         String name=sc.nextLine();
         System.out.println("Enter number of items to lent(Should not be more than 5):");
         int n=sc.nextInt();
         Employee objE=new Employee(name,n);
         System.out.print("Enter number of books you want to lent:");
         int b=sc.nextInt();
         sc.nextLine();
         String book[]=new String[b];
         for (int i=0;i<b;i++ ){
             System.out.print("Enter Book "+(i+1)+" Name:");
             book[i]=sc.nextLine();
         } 
         System.out.print("Enter number of journals you want to lent:");
         int j=sc.nextInt();
          sc.nextLine();
         String journal[]=new String[j];
         for (int i=0;i<j;i++ ){
             System.out.print("Enter journal "+(i+1)+" Name:");
             journal[i]=sc.nextLine();
         } 
         System.out.print("Enter number of videos you want to lent:");
         int v=sc.nextInt();
          sc.nextLine();
         String videos[]=new String[v];
         for (int i=0;i<v;i++ ){
             System.out.print("Enter video "+(i+1)+" Name:");
             videos[i]=sc.nextLine();
         } 
         MaterialCard objM=new MaterialCard(book,journal,videos);
         System.out.println("You are checked in!");
         System.out.println("Now while checking out");
         System.out.print("Enter the no of days due for books: ");
         int b1=sc.nextInt();
         System.out.print("Enter the no of days due for journals: ");
         int j1=sc.nextInt();
         System.out.print("Enter the no of days due for videos: ");
         int v1=sc.nextInt();
          objM.dueDates(b1,j1,v1);
          System.out.println("Books you are returning: ");
          for (int i=0;i<objM.getBooks().length;i++){
              System.out.println(objM.getBooks()[i]);
          } 
          System.out.println("Journals you are returning: :");
          for (int i=0;i<objM.getJournals().length;i++){
              System.out.println(objM.getJournals()[i]);
          } 
          System.out.println("Videos you are returning");
          for (int i=0;i<objM.getVideos().length;i++){
              System.out.println(objM.getVideos()[i]);
          } 
          objE.setEmplyoeeFine(objM.getFine());
          System.out.println("Total fine is:"+objM.getFine());
          System.out.println(objE.getUserName()+"You are checked out Thank you visit again");
        }
}

Thank you! if you have any queries post it below in the comment section I will try my best to resolve your queries and I will add it to my answer if required. Please give upvote if you like it.