diff --git a/Answers/40230112113/Admin.class b/Answers/40230112113/Admin.class
new file mode 100644
index 0000000..9809859
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diff --git a/Answers/40230112113/Admin.java b/Answers/40230112113/Admin.java
new file mode 100644
index 0000000..5abe79c
--- /dev/null
+++ b/Answers/40230112113/Admin.java
@@ -0,0 +1,18 @@
+public class Admin extends User
+{
+    private String Password;
+
+    public Admin(String name , int ID , String number , String Password)
+    {
+        super(name, ID, number);
+        this.setPassword(Password);
+    }
+    public String getPassword()
+    {
+        return Password;
+    }
+    public void setPassword(String Password)
+    {
+        this.Password=Password;
+    }
+}
\ No newline at end of file
diff --git a/Answers/40230112113/Book.class b/Answers/40230112113/Book.class
new file mode 100644
index 0000000..eea5ae1
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diff --git a/Answers/40230112113/Book.java b/Answers/40230112113/Book.java
new file mode 100644
index 0000000..fb600d0
--- /dev/null
+++ b/Answers/40230112113/Book.java
@@ -0,0 +1,57 @@
+public class Book
+{
+    private String Title;
+    private String Description;
+    private Boolean IsAvailable;
+    private String Author;
+    private int BookID=1000;
+    
+    public Book(String Title , String Description , Boolean IsAvailable , String Author , int BookID)
+    {
+        this.Author=Author;
+        this.Description=Description;
+        this.BookID=BookID++;
+        this.IsAvailable=IsAvailable;
+        this.Title=Title;
+    }
+    public String getTitle()
+    {
+        return Title;
+    }
+    public void setTitle(String title)
+    {
+        this.Title=title;
+    }
+    public String getDescription()
+    {
+        return Description;
+    }
+    public void setDescription(String description)
+    {
+        this.Description=description;
+    }
+    public String getAuthor()
+    {
+        return Author;
+    }
+    public void setAuthor(String author)
+    {
+        this.Author=author;
+    }
+    public Boolean getIsAvailable()
+    {
+        return IsAvailable;
+    }
+    public Boolean setIsAvailable(Boolean newIsAvailable)
+    {
+        return IsAvailable=newIsAvailable;
+    }
+    public int getBookID()
+    {
+        return BookID;
+    }
+    /*public String toString()
+    {
+        return "Title: "+Title+"Description: "+Description+"Author: "+Author+"BookID: "+BookID;
+    }*/
+}
diff --git a/Answers/40230112113/CLI.class b/Answers/40230112113/CLI.class
new file mode 100644
index 0000000..8bde3bb
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diff --git a/Answers/40230112113/CLI.java b/Answers/40230112113/CLI.java
new file mode 100644
index 0000000..e1e5397
--- /dev/null
+++ b/Answers/40230112113/CLI.java
@@ -0,0 +1,254 @@
+import java.util.Scanner;
+
+public class CLI
+{
+    //i shouldn't have written this class. using only the library class was sufficient :')
+
+    public static final String RESET = "\u001B[0m";
+    public static final String RED = "\u001B[31m";
+    public static final String GREEN = "\u001B[32m";
+    public static final String YELLOW = "\u001B[33m";
+    public static final String PURPLE = "\u001B[35m";
+    public static final String BLUE = "\u001B[34m";
+    public static final String CYAN = "\u001B[36m";
+    public static final String WHITE = "\u001B[37m";
+    public static final String BLACK = "\u001B[30m";
+
+    static boolean IsAdmin=false;
+
+    static Scanner sc = new Scanner(System.in);
+
+    Library library;
+    public CLI(Library library)
+    {
+        this.library=library;
+    }
+
+    Boolean First_Run=true;
+    public void Run()
+    {
+        if(First_Run)
+        {
+            System.out.println(BLUE+"WELCOME"+RESET);
+            First_Run=false;
+        }
+        System.out.println(PURPLE+"1-ADMIN\n"+"2-NORMAL USER\n"+"3-Exit\n"+RESET);
+        int a = sc.nextInt();
+        switch(a)
+        {
+            case 1:
+                AdminPanel();
+                break;
+            case 2:
+                NormalUserPanel();
+                break;
+            case 3:
+                System.out.println(GREEN+"Have a nice day!"+RESET);
+                break;
+            default:
+                System.out.println("wrong entry. please try again.");
+                Run();
+        }
+    }
+
+
+    Boolean First_time_ad=true;
+    public void AdminPanel()
+    {
+        System.out.println(BLUE+"WELCOME TO ADMIN PANEL"+RESET);
+        System.out.println("please enter your name and password");
+        System.out.print("Name: ");
+        String AdminName = sc.nextLine();
+        
+        if(AdminName.equalsIgnoreCase("exit"))
+        {
+            Run();
+        }
+        if(First_time_ad)
+        {
+            First_time_ad=false;
+            IsAdmin=true;
+            library.First_admin();
+            AllCommands();
+        }
+        else if(First_time_ad==false)
+        {
+            Admin admin = null;
+            if(library.CheckName(AdminName)==AdminName)
+            {
+                
+                System.out.print("password: ");
+                String password=sc.nextLine();
+                if(library.CheckPassword(password,AdminName))
+                {
+                    System.out.println("welcome "+AdminName);
+                    IsAdmin=true;
+                    AllCommands();
+                }
+            }
+            else
+            {
+                System.out.println("no match found. please try again.");
+                AdminPanel();
+            }
+        }
+    }
+
+
+    Boolean First_time_us=true;
+    public void NormalUserPanel()
+    {
+        if(First_time_us)
+        {
+            System.out.println("WELCOME TO RAIN LIBRARY");
+            First_time_us=false;
+        }
+        System.out.println("Please enter your Name and Phone Number");
+        System.out.println("to go back to the main menu please enter \"exit\" ");
+        String name = sc.nextLine();
+        if(true)
+        {
+            System.out.print("Phone Number: ");
+            String phonenumber = sc.nextLine();
+            if(library.Checknumber(phonenumber))
+            {
+                System.out.println("welcome "+name);
+                IsAdmin=false;
+                AllCommands();
+            }
+        }
+    }
+
+
+    public void AllCommands()
+    {
+        System.out.println("input \"lib help\" to see all the commands available");
+        System.out.print("enter the command: ");
+        String command = sc.nextLine();
+        command.replaceAll("[^a-zA-Z0-9]", "");
+        String[] splitted = command.split(" ");
+        //boolean isCorrect=true;
+        //while(isCorrect)
+        //{
+            if(splitted[0].equals("lib"))
+            {
+                switch(splitted[1].toLowerCase())
+                {
+                    case "add":
+                    {
+                        if(IsAdmin==true)
+                        {
+                            if(splitted[2].equalsIgnoreCase("book"))
+                            {
+                                String s="";
+                                int i=5;
+                                for(;;)
+                                {
+                                    s+=splitted[i].toString();
+                                    i++;
+                                    if(splitted[i]==null)
+                                        break;
+                                }
+                                library.addbook(splitted[3],splitted[4],s);
+                                AllCommands();
+                            }
+                            else if(splitted[2].equalsIgnoreCase("admin"))
+                            {
+                                library.addAdmin(splitted[3],splitted[4]);
+                                AllCommands();
+                            }
+                        }
+                        else
+                        {
+                            System.out.println("Permission not granted. you are not an admin. please try again.");
+                            AllCommands();
+                        }
+                    }
+                    case "get":
+                    {
+                        if(splitted[2].equalsIgnoreCase("available"))
+                        {
+                            if((splitted[3].equalsIgnoreCase("books"))||(splitted[3].equalsIgnoreCase("book")))
+                            {
+                                library.showbooks();
+                                AllCommands();
+                            }
+                            else
+                            {
+                                System.out.println("wrong entry. please try again.");
+                                AllCommands();
+                            }
+                        }
+                        else if((splitted[2].equalsIgnoreCase("hrs"))||(splitted[2].equalsIgnoreCase("hours"))||(splitted[2].equalsIgnoreCase("hour")))
+                        {
+                            System.out.println(library.getWorkinghours());
+                            AllCommands();
+                        }
+                        else
+                        {
+                            System.out.println("wrong entry. please try again.");
+                            AllCommands();
+                        }
+                    }
+                    case "rent":
+                    {
+                        library.Rentbook(splitted[2], splitted[3], splitted[4]);
+                        AllCommands();
+                    }
+                    case "remove":
+                    {
+                        if(splitted[2].equalsIgnoreCase("admin"))
+                        {
+                            library.RemoveAdmin(splitted[3]);
+                        }
+                        else if(splitted[2].equalsIgnoreCase("book"))
+                        {
+                            library.Removebook();
+                        }
+                        else
+                        {
+                            System.out.println("wrong entry. please try again.");
+                            AllCommands();
+                        }
+                    }
+                    case "return":
+                    {
+                        library.returnbook(splitted[2]);
+                        AllCommands();
+                    }
+                    case "help":
+                    {
+                        HelpCommand();
+                        AllCommands();
+                    }
+                    default:
+                    {
+                        System.out.println("wrong entry. please try again.");
+                        AllCommands();
+                    }
+                }
+            }
+            else if(splitted[0].equalsIgnoreCase("exit"))
+            {
+                Run();
+            }
+            else
+            {
+                System.out.println("wrong entry. please try again.");
+                AllCommands();
+            }
+        //}
+    }
+    public void HelpCommand()
+    {
+        System.out.println(RED+"lib add book <name> <author> <subtitle>: Add a new book to the library."+RESET);
+        System.out.println(RED+"lib get hrs: Retrieve library operating hours."+RESET);
+        System.out.println(YELLOW+"lib remove book <bookName>: Remove a book from the library."+RESET);
+        System.out.println(GREEN+"lib add admin <name> <password>: Add a new member to the library (admin privilege required)."+RESET);
+        System.out.println(GREEN+"lib rent <name> <bookName> <memberID>: Rent a book for a specific member."+RESET);
+        System.out.println(CYAN+"lib get available books: View available books for rental."+RESET);
+        System.out.println(BLUE+"lib remove admin <adminID>: Remove a member from the library (admin privilege required)."+RESET);
+        System.out.println(PURPLE+"lib return <bookName>: Return a rented book to the library."+RESET);
+        System.out.println(PURPLE+"exit: Go back to MainMenu"+RESET);
+    }
+}
\ No newline at end of file
diff --git a/Answers/40230112113/Library.class b/Answers/40230112113/Library.class
new file mode 100644
index 0000000..8b9ca20
Binary files /dev/null and b/Answers/40230112113/Library.class differ
diff --git a/Answers/40230112113/Library.java b/Answers/40230112113/Library.java
new file mode 100644
index 0000000..9f3701a
--- /dev/null
+++ b/Answers/40230112113/Library.java
@@ -0,0 +1,279 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
+public class Library
+{
+    static Scanner sc = new Scanner(System.in);
+
+    public static final String RESET = "\u001B[0m";
+    public static final String RED = "\u001B[31m";
+    public static final String GREEN = "\u001B[32m";
+    public static final String YELLOW = "\u001B[33m";
+    public static final String PURPLE = "\u001B[35m";
+    public static final String BLUE = "\u001B[34m";
+
+
+    private String LibName;
+    private int capacity;
+    private String Workinghours;
+    private ArrayList<Book> books = new ArrayList<>();
+    private ArrayList<User> users = new ArrayList<>();
+    private ArrayList<Rent> rents = new ArrayList<>();
+
+
+    public Library(String LibName , int capacity , String Workinghours)
+    {
+        this.setname(LibName);
+        this.setcapacity(capacity);
+        this.Workinghours=Workinghours;
+        this.books=new ArrayList<Book>();
+        this.users=new ArrayList<User>();
+        this.rents=new ArrayList<Rent>();
+    }
+    int BookID=1;
+    int UserID=1;
+    int RentID=1;
+
+    public String getLibName()
+    {
+        return LibName;
+    }
+    public void setname(String LibName)
+    {
+        this.LibName=LibName;
+    }
+    public int getCapacity()
+    {
+        return capacity;
+    }
+    public void setcapacity(int capacity)
+    {
+        this.capacity=capacity;
+    }
+    public String getWorkinghours()
+    {
+        return Workinghours;
+    }
+
+    public void First_admin()
+    {
+        System.out.print("please enter your name: ");
+        String name = sc.nextLine();
+        System.out.print("please enter your password: ");
+        String password = sc.nextLine();
+        System.out.print("please enter your number: ");
+        boolean check_it = false;
+        String number="";
+        while(!check_it)
+        {
+            number = sc.nextLine();
+            check_it=Checknumber(number);
+        }
+        Admin admin = new Admin(name, UserID, number, password);
+        UserID++;
+        users.add(admin);
+    }
+
+    public void addAdmin(String name , String password)
+    {
+        String number="";
+        boolean check_it=false;
+        while(check_it==false)
+        {
+            System.out.println("please enter your number");
+            number=sc.nextLine();
+            check_it=Checknumber(number);
+        }
+        Admin admin = new Admin(name, UserID, number, password);
+        UserID++;
+        users.add(admin);
+        System.out.println(name+" "+password);
+    }
+
+    public void RemoveAdmin(String ID)
+    {
+        Integer id = Integer.valueOf(ID);
+        //to convert string to integer :>
+        for(User i : users)
+        {
+            if(i.getID()==id)
+            {
+                users.remove(i);
+            }
+        }
+    }
+
+
+    public void addbook(String title , String author , String description)
+    {
+        System.out.print("availability: ");
+        Boolean availability=sc.nextBoolean();
+        Book newbook = new Book(title, description, availability, author, BookID);
+        BookID++;
+        books.add(newbook);
+    }
+
+
+    public void showbooks()
+    {
+        for (Book showbook : books)
+        {
+            if(showbook.getIsAvailable())
+            {
+                System.out.println(showbook.getTitle()+"by"+showbook.getAuthor());
+            }
+        }
+    }
+    
+    public void returnbook(String name)
+    {
+        for (Book i : books)
+        {
+            if(i.getTitle().equalsIgnoreCase(name))
+            {
+                i.setIsAvailable(true);
+            }    
+        }
+    }
+
+    public void Rentbook(String name , String title , String ID)
+    {
+        NormalUser u = null;
+        Book b = null;
+        Integer id = Integer.valueOf(ID);
+        if(CheckName(name)==name)
+        {
+            for(User i : users)
+            {
+                
+                if(i.getName().equalsIgnoreCase(name))
+                {
+                    if(i.getID()==id)
+                    {
+                        u=(NormalUser) i;
+                        break;
+                    }
+                    else
+                    {
+                        System.out.println("incorrect id. please try again.");
+                        return;
+                    }
+                }
+            }
+            
+            for(Book i : books)
+            {
+                if((i.getTitle().equalsIgnoreCase(title)))
+                {
+                    b=i;
+                    break;
+                }
+                else
+                {
+                    System.out.println("book not found. please try again.");
+                    return;
+                }
+            }
+            Rent rent = new Rent(b, u, RentID);
+            RentID++;
+            rents.add(rent);
+            b.setIsAvailable(false);
+        }
+        else
+        {
+            System.out.println("user not found. please try again.");
+            return;
+        }
+    }
+
+    public void Removebook()
+    {
+        System.out.print("input the book title: ");
+        String booktitle=sc.nextLine();
+        for(Book i : books)
+        {
+            if(i.getTitle().equalsIgnoreCase(booktitle))
+            {
+                books.remove(i);
+            }
+        }
+    }
+
+
+
+    //***************** checking system******************//
+    public Boolean CheckPassword(String password, String name)
+    {
+        boolean hm=false;
+        for (User i : users)
+        {
+            if (CheckName(i.getName())==name)
+            {
+                //Admin admin=null;
+                //int admin_id=i.getID();
+                if(users.indexOf(password)==users.indexOf(name))
+                {
+                    hm=true;
+                    break;
+                }
+                else
+                {
+                    hm=false;
+                    break;
+                }
+            }
+        }
+        return hm;
+    }
+
+    public String CheckName(String name)
+    {
+        for (User i : users)
+        {
+            if (i.getName().equalsIgnoreCase(name))
+            {
+                return name;
+            }
+        }
+        System.out.println("no match found.");
+        return "false";
+    }
+
+    public Boolean Checknumber(String num)
+    {
+        Boolean haha=true;
+        if ((num.length()==11)&&((num.charAt(0)=='0')&&(num.charAt(1)=='9')))
+        {
+            for(int i=2;i<num.length();i++)
+            {
+                if((num.charAt(i)>'9')||(num.charAt(i)<'0'))
+                {
+                    haha=false;
+                    break;
+                }
+            }
+        }
+        else if ((num.length()==10)&&(num.charAt(0)=='9'))
+        {
+            //num=0+num;
+            for(int i=1;i<num.length();i++)
+            {
+                if((num.charAt(i)>'9')||(num.charAt(i)<'0'))
+                {
+                    haha=false;
+                    break;
+                }
+            }
+        }
+        else
+        {
+            haha=false;
+        }
+        if(!haha)
+            System.out.println("Wrong entry. Try again.");
+
+        return haha;
+    }
+
+    //**************************************************//
+}
diff --git a/Answers/40230112113/MyApp.class b/Answers/40230112113/MyApp.class
new file mode 100644
index 0000000..bcbcc20
Binary files /dev/null and b/Answers/40230112113/MyApp.class differ
diff --git a/Answers/40230112113/MyApp.java b/Answers/40230112113/MyApp.java
new file mode 100644
index 0000000..bbba8f1
--- /dev/null
+++ b/Answers/40230112113/MyApp.java
@@ -0,0 +1,9 @@
+public class MyApp
+{
+    public static void main(String[] args)
+    {
+        Library library = new Library("RAIN", 50 , "7-21");
+        CLI cli = new CLI(library);
+        cli.Run();
+    }    
+}
diff --git a/Answers/40230112113/NormalUser.class b/Answers/40230112113/NormalUser.class
new file mode 100644
index 0000000..e7bc38b
Binary files /dev/null and b/Answers/40230112113/NormalUser.class differ
diff --git a/Answers/40230112113/NormalUser.java b/Answers/40230112113/NormalUser.java
new file mode 100644
index 0000000..993999d
--- /dev/null
+++ b/Answers/40230112113/NormalUser.java
@@ -0,0 +1,20 @@
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class NormalUser extends User
+{
+    private String Userdate;
+    //converting to a known format in form of String
+
+    public NormalUser(String name , int ID , String number)
+    {
+        super(name, ID, number);
+        DateTimeFormatter CUSTOM_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+        LocalDateTime userdate = LocalDateTime.now();
+        this.Userdate=userdate.format(CUSTOM_FORMATTER);
+    }
+    public String getUserDate()
+    {
+        return Userdate;
+    }
+}
diff --git a/Answers/40230112113/Rent.class b/Answers/40230112113/Rent.class
new file mode 100644
index 0000000..af9b354
Binary files /dev/null and b/Answers/40230112113/Rent.class differ
diff --git a/Answers/40230112113/Rent.java b/Answers/40230112113/Rent.java
new file mode 100644
index 0000000..0bd22d6
--- /dev/null
+++ b/Answers/40230112113/Rent.java
@@ -0,0 +1,52 @@
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class Rent
+{
+    private Book book;
+    private NormalUser normaluser;
+    private int RentID;
+    
+    private String Rentdate;
+
+    public Rent(Book book , NormalUser normaluser , int RentID)
+    {
+        this.RentID=RentID;
+        this.setBook(book);
+        this.setNormaluser(normaluser);
+        
+        DateTimeFormatter CUSTOM_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+        LocalDateTime rentdate = LocalDateTime.now();
+
+        this.Rentdate = rentdate.format(CUSTOM_FORMATTER);
+    }
+    public Book getBook()
+    {
+        return book;
+    }
+    public void setBook(Book book)
+    {
+        this.book=book;
+    }
+    public NormalUser getNormaluser()
+    {
+        return normaluser;
+    }
+    public void setNormaluser(NormalUser normaluser)
+    {
+        this.normaluser=normaluser;
+    }
+    public int getRentID()
+    {
+        return RentID;
+    }
+    public String getRentdate()
+    {
+        return Rentdate;
+    }
+
+    /*public String toString()
+    {
+        return RentID+Rentdate;
+    }*/
+}
diff --git a/Answers/40230112113/User.class b/Answers/40230112113/User.class
new file mode 100644
index 0000000..2ec8413
Binary files /dev/null and b/Answers/40230112113/User.class differ
diff --git a/Answers/40230112113/User.java b/Answers/40230112113/User.java
new file mode 100644
index 0000000..2e5c3ba
--- /dev/null
+++ b/Answers/40230112113/User.java
@@ -0,0 +1,40 @@
+public class User
+{
+    private String name;
+    private int ID;
+    private String number;
+    public User(String name , int ID , String number)
+    {
+        this.setName(name);
+        this.ID=ID;
+        this.setName(number);
+    }
+    //it is is better to use setter instead of "this. =" formation
+
+    public String getName()
+    {
+        return name;
+    }
+    public void setName(String name)
+    {
+        this.name=name;
+    }
+    public String getNumber()
+    {
+        return number;
+    }
+    public void setNumber(String number)
+    {
+        this.number=number;
+    }
+    public int getID()
+    {
+        return ID;
+    }
+    //I had to search so many times to find this cool thing here :>
+    //I'm doing this so that i can work with arraylist easily
+    /*public String toString()
+    {
+        return name+ID+number;
+    }*/
+}
\ No newline at end of file