diff --git a/BookBorrow/Main.java b/BookBorrow/Main.java
new file mode 100644
index 0000000..e187df4
--- /dev/null
+++ b/BookBorrow/Main.java
@@ -0,0 +1,139 @@
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+
+interface Borrower
+{
+   void checkin();
+   void checkout();
+}
+class Book 
+{
+    int bookID;
+    String title;
+    String author;
+    String booktype;
+    String status="Available";
+    String borroweduser="";
+    Book(int bookID, String title, String author, String booktype)
+    {
+        this.bookID=bookID;
+        this.title=title;
+        this.author=author;
+        this.booktype=booktype;
+    }
+}
+
+public class Main
+{
+	public static void main(String[] args)
+	{
+	    Scanner sc=new Scanner(System.in);
+	    LinkedList<Book> lists=new LinkedList<>(); 
+    	 for(;;)
+    	 {
+    	     System.out.println("1. Add Reference Book\n2. Add Text Book\n3. Check-Out\n4. Check-In\n5. List Books\n6. Exit\n");
+             System.out.println("Enter your choice:");
+             int n=sc.nextInt();
+             String esc=sc.nextLine();
+             int id;
+             String title;
+             String author;
+             String username;
+             
+             
+             if(n==1)
+            {
+                System.out.println("Input ID, Title and Author");
+                id=sc.nextInt();
+                String buff=sc.nextLine();
+                title=sc.nextLine();
+                author=sc.nextLine();
+                Book b=new Book(id,title,author,"RefBook"); // RB: Reference Book 
+                lists.add(b);
+            }
+             
+            else if(n==2)
+            {
+                           System.out.println("Input ID, Title and Author");
+                           id=sc.nextInt();
+                           String buff=sc.nextLine();
+                           title=sc.nextLine();
+                           author=sc.nextLine();
+                           Book b=new Book(id,title,author,"TextBook"); // TB: Text Book
+                           lists.add(b);
+        
+            }
+            else if(n==3)
+            {
+                           System.out.println("Input Book ID:");
+                           id=sc.nextInt();
+                           String buff=sc.nextLine();
+                           for(Book b:lists)
+                           {
+                               if(b.bookID==id)
+                               {
+                                   if(b.booktype.equals("RefBook"))
+                                   {
+                                       System.out.println("Cannot be borrowed");
+                                       break;
+                                   }
+                                   else
+                                   {
+                                       b.status="Borrowed";
+                                       username=sc.nextLine();
+                                       b.borroweduser=username;
+                                   }
+                               }
+                           }
+            }
+            else if(n==4)
+            {
+                        System.out.println("Input Book ID:");
+                        id=sc.nextInt();
+                        for(Book b:lists)
+                         {
+                               if(b.bookID==id)
+                               {
+                                   if(b.booktype.equals("RefBook"))
+                                   {
+                                       System.out.println("Invalid");
+                                       break;
+                                   }
+                                   else
+                                   {
+                                       b.status="Available";
+                                   }
+                               }
+                           }
+            }
+            else if(n==5)
+            {
+                for(Book b:lists)
+                {
+                            
+                    if(b.booktype.equals("RefBook"))
+                    {
+                        System.out.println("ReferenceBook:"+b.bookID+":"+b.title+":"+b.author);
+                    }
+                    else
+                    {
+                        if(b.status.equals("Available"))
+                            System.out.println("TextBook:"+b.bookID+":"+b.title+":"+b.author+":Available");
+                        else
+                                System.out.println("TextBook:"+b.bookID+":"+b.title+":"+b.author+":Borrowed by "+b.borroweduser);
+                    }
+                }
+                        
+            }
+            else
+            {
+                break;
+            }
+                        
+                           
+        
+        }
+	}
+}
diff --git a/BookBorrow/Readme.md b/BookBorrow/Readme.md
new file mode 100644
index 0000000..d05f9ec
--- /dev/null
+++ b/BookBorrow/Readme.md
@@ -0,0 +1,63 @@
+# Question
+There is a class Book, which has the attributes bookID, title and author. There are two categories of books, TextBooks and ReferenceBooks.<br/>
+The text books can be borrowed by a user while the reference books cannot be. There is an extra attribute status (default value is Available) <br/>
+and borrowedUser in the class TextBooks. There is an interface Borrowable which has methods checkIn and checkOut. The class Book implements 
+the Borrowable interface (Think and decide whether class Book is an abstract class or not).
+<br/>
+<br/>
+The functionality of the checkIn and checkOut methods in TextBooks class is as follows:<br/>
+checkIn : should set status attribute as Borrowed and should set the value of borrowedUser.<br/>
+checkOut : should set status attribute as Available
+<br/>
+<br/>
+The functionality of the checkIn and checkOut methods in ReferenceBooks class is as follows:<br/>
+checkIn : display “Invalid”<br/>
+checkOut : display “Cannot be borrowed”
+<br/>
+<br/>
+Sample Input and Output:<br/>
+1. Add Reference Book<br/>
+2. Add Text Book<br/>
+3. Check-Out<br/>
+4. Check-In<br/>
+5. List Books<br/>
+6. Exit<br/>
+
+<br/>
+
+### Enter your choice: 1
+Enter ID, Title and Author (Line by line)<br/>
+101<br/>
+Data Structures and Algorithms<br/>
+Cormen
+
+### Enter your choice: 2
+Enter ID, Title and Author (Line by line)<br/>
+102<br/>
+Programming Ruby<br/>
+Thomas
+
+### Enter your choice: 5
+ReferenceBook: 101: Data Structures and Algorithms: Cormen<br/>
+TextBook: 102: Programming Ruby: Thomas: Available
+
+### Enter your choice: 3
+Enter Book ID: 101<br/>
+Cannot be borrowed
+
+### Enter your choice: 3
+Enter Book ID: 102<br/>
+Enter Username: Ram
+
+### Enter your choice: 5
+ReferenceBook: 101: Data Structures and Algorithms: Cormen<br/>
+TextBook: 102: Programming Ruby: Thomas: Borrowed by Ram
+
+### Enter your choice: 4
+Enter Book ID: 102
+
+### Enter your choice: 5
+ReferenceBook: 101: Data Structures and Algorithms: Cormen<br/>
+TextBook: 102: Programming Ruby: Thomas: Available
+
+### Enter your choice: 6