diff --git a/Answers/Yas_HasssanPour_40231712003/.gitignore b/Answers/Yas_HasssanPour_40231712003/.gitignore
new file mode 100644
index 0000000..5ff6309
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/.gitignore
@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/Answers/Yas_HasssanPour_40231712003/.idea/.gitignore b/Answers/Yas_HasssanPour_40231712003/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/Answers/Yas_HasssanPour_40231712003/.idea/encodings.xml b/Answers/Yas_HasssanPour_40231712003/.idea/encodings.xml
new file mode 100644
index 0000000..aa00ffa
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/.idea/encodings.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Answers/Yas_HasssanPour_40231712003/.idea/misc.xml b/Answers/Yas_HasssanPour_40231712003/.idea/misc.xml
new file mode 100644
index 0000000..f346f33
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/.idea/misc.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="22" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Answers/Yas_HasssanPour_40231712003/.idea/vcs.xml b/Answers/Yas_HasssanPour_40231712003/.idea/vcs.xml
new file mode 100644
index 0000000..b2bdec2
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Answers/Yas_HasssanPour_40231712003/pom.xml b/Answers/Yas_HasssanPour_40231712003/pom.xml
new file mode 100644
index 0000000..ba51b4a
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/pom.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>Yas_HasssanPour_40231712003</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>22</maven.compiler.source>
+        <maven.compiler.target>22</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
\ No newline at end of file
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Admin.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Admin.java
new file mode 100644
index 0000000..5c27414
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Admin.java
@@ -0,0 +1,19 @@
+package org.example;
+
+public class Admin extends User{
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    private String password;
+    public Admin (String name, int ID, int phoneNuM, String password)
+    {
+        super(name, ID, phoneNuM);
+        this.password= password;
+    }
+
+}
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Book.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Book.java
new file mode 100644
index 0000000..9baefe1
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Book.java
@@ -0,0 +1,53 @@
+package org.example;
+
+import java.util.HashMap;
+
+public class Book {
+    private int Unique_bookID;
+    private String title;
+    private String author;
+    private boolean Availability_status;
+    String Description;
+
+    public int getUnique_bookID() {
+        return Unique_bookID;
+    }
+
+    public void setUnique_bookID(int unique_bookID) {
+        Unique_bookID = unique_bookID;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public boolean isAvailability_status() {
+        return Availability_status;
+    }
+
+    public void setAvailability_status(boolean availability_status) {
+        Availability_status = availability_status;
+    }
+
+
+    public Book (String title, int bookID, String author, String description) {
+        Unique_bookID = bookID;
+        this.title = title;
+        this.author = author;
+        this.Availability_status = true;
+        this.Description= description;
+    }
+}
+
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/CLI.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/CLI.java
new file mode 100644
index 0000000..152e7ef
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/CLI.java
@@ -0,0 +1,14 @@
+package org.example;
+
+import java.util.Scanner;
+
+public class CLI {
+    Scanner scanner = new Scanner(System.in);
+    System.out.println("Welcom to our library! What can we do for you?\n lib add book<name><authos><subtitle>: add a new book to the library\n lib get hrs: Retrieve library opening hours\n lib rent<bookName>: Rent a book from the library\nlib add member<studentID> <password>: Add a new member to the library (admin privilege reqiuered\nlib rent ");
+    String input = scanner.nextLine();
+
+        while (true) {
+        System.out.println("Enter a command (type 'help' for available commands):");
+        String command = scanner.nextLine();
+}
+
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Library.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Library.java
new file mode 100644
index 0000000..968b70b
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Library.java
@@ -0,0 +1,70 @@
+package org.example;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+public class Library {
+    public String getLibraryName() {
+        return LibraryName;
+    }
+
+    public void setLibraryName(String libraryName) {
+        LibraryName = libraryName;
+    }
+
+    public int getCapacity() {
+        return capacity;
+    }
+
+    public void setCapacity(int capacity) {
+        this.capacity = capacity;
+    }
+
+    public int getOperatingHours() {
+        return operatingHours;
+    }
+
+    public void setOperatingHours(int operatingHours) {
+        this.operatingHours = operatingHours;
+    }
+
+    private String LibraryName;
+    private int capacity;
+    private int operatingHours;
+    private ArrayList<Book>bookRepo;
+    private List<User>userRegistries;
+    private List<Rent>rentalRegistries;
+    public Library (String LibraryName,int capacity, int operatingHours)
+    {
+        this.LibraryName= LibraryName;
+        this.capacity= capacity;
+        this.operatingHours= operatingHours;
+        this.bookRepo= new ArrayList<>();
+        this.userRegistries= new ArrayList<>();
+        this.rentalRegistries= new ArrayList<>();
+    }
+    public void addBook(Book book)
+    {
+        bookRepo.add(book);
+    }
+    public void addUser(User user)
+    {
+        userRegistries.add(user);
+    }
+    public void rentBook(Book book, NormalUser user, int rentalID, Date rentalDate)
+    {
+        Rent rent = new Rent(book, user, rentalID, rentalDate);
+        rentalRegistries.add(rent);
+        book.setAvailability_status(false);
+    }
+    public void returnBook(Book book)
+    {
+        book.setAvailability_status(true);
+    }
+    public void removeUser (User user)
+    {
+        userRegistries.remove(user);
+    }
+
+}
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/MyApp.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/MyApp.java
new file mode 100644
index 0000000..6752680
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/MyApp.java
@@ -0,0 +1,25 @@
+package org.example;
+
+import java.util.Date;
+
+public class MyApp {
+        public static void main(String[] args) {
+
+            Library library = new Library("My Library", 100, 9_5);
+
+            Book book1 = new Book("Book2", 82734,"author1", "Description1");
+            Book book2 = new Book("Book2", 23984,"author2", "Description2");
+            library.addBook(book1);
+            library.addBook(book2);
+
+            NormalUser user1 = new NormalUser("User1", 1234567890,"09112143646", new Date());
+            library.addUser(user1);
+
+
+            library.rentBook(book1, user1, 1, new Date());
+            library.returnBook(book1);
+            library.removeUser(user1);
+        }
+
+
+    }
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/NormalUser.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/NormalUser.java
new file mode 100644
index 0000000..7f0d310
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/NormalUser.java
@@ -0,0 +1,21 @@
+package org.example;
+
+import java.util.Date;
+
+public class NormalUser extends User{
+    private Date registrationDate;
+
+    public Date getRegistrationDate() {
+        return registrationDate;
+    }
+
+    public void setRegistrationDate(Date registrationDate) {
+        this.registrationDate = registrationDate;
+    }
+
+    public NormalUser(String name, int ID, String phoneNum, Date registrationDate)
+    {
+        super(name,ID,phoneNum);
+        this.registrationDate= registrationDate;
+    }
+}
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Rent.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Rent.java
new file mode 100644
index 0000000..f84756f
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/Rent.java
@@ -0,0 +1,54 @@
+package org.example;
+
+import java.util.Date;
+
+public class Rent {
+    public void setBook(Book book) {
+        this.book = book;
+    }
+
+    public void setNormalUser(NormalUser normalUser) {
+        this.normalUser = normalUser;
+    }
+
+    public void setRentalID(int rentalID) {
+        this.rentalID = rentalID;
+    }
+
+    public void setRentalDate(Date rentalDate) {
+        this.rentalDate = rentalDate;
+    }
+
+    private Book book;
+    private NormalUser normalUser;
+    private int rentalID;
+
+    public Book getBook() {
+        return book;
+    }
+
+    public NormalUser getNormalUser() {
+        return normalUser;
+    }
+
+    public int getRentalID() {
+        return rentalID;
+    }
+
+    public Date getRentalDate() {
+        return rentalDate;
+    }
+
+    private Date rentalDate;
+    public Rent (Book book, NormalUser normalUser, int rentalID, Date rentalDate)
+    {
+        this.book = book;
+        this.normalUser= normalUser;
+        this.rentalID = rentalID;
+        this.rentalDate= rentalDate;
+    }
+
+
+
+
+}
diff --git a/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/User.java b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/User.java
new file mode 100644
index 0000000..331700f
--- /dev/null
+++ b/Answers/Yas_HasssanPour_40231712003/src/main/java/org/example/User.java
@@ -0,0 +1,41 @@
+package org.example;
+
+import java.util.HashMap;
+
+public class User {
+    private String name;
+    private int ID;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getID() {
+        return ID;
+    }
+
+    public void setID(int ID) {
+        this.ID = ID;
+    }
+
+    public String getPhoneNum() {
+        return phoneNum;
+    }
+
+    public void setPhoneNum(String phoneNum) {
+        this.phoneNum = phoneNum;
+    }
+
+    private String phoneNum;
+    public User(String name, int ID, String PhoneNum) {
+        this.name = name;
+        this.ID = ID;
+        this.phoneNum = phoneNum;
+    }
+
+}
+