diff --git a/src/core/note_app.dart b/src/core/note_app.dart
index 39a3f92..fd566e8 100644
--- a/src/core/note_app.dart
+++ b/src/core/note_app.dart
@@ -1,6 +1,152 @@
+import 'dart:io';
+import '../models/note_model.dart';
+
 class NoteApp {
-  // TODO: Complete the run function
-  void run() {
-    print('Hello, world!');
+
+  static List<Note> notes = []; // stores Note data
+  
+
+  NoteApp() {}
+  
+  
+  static void addNote() { //Asks the user to enter the note's info to create object in the notes list
+    print("\n\n\t***********************New Note***********************\n\n");
+    stdout.write("\t\tEnter Note Title : ");
+    String? title = stdin.readLineSync();
+    stdout.write("\t\tEnter The Note Content: \n\t\t");
+    String? note = stdin.readLineSync();
+    Note n = new Note(title!, note!);
+
+    notes.add(n);
+
+    print("\n\t\t~Note Saved Successfully");
+  }
+
+  static void displayNotes() { //print the notes
+    if(notes.isEmpty){
+      print("\n\n\t\t~There are no notes to display.");
+    }else{
+    int i = 0;
+    print("\n\t\t-------------------Notes List-------------------");
+    notes.forEach((element) {
+      print("\t\t\t${i + 1} - ${notes[i].getTitle()}");
+      i++;
+    });
+    }
+  }
+
+  static void deleteNote() { //delete note by the displaying the notes and asking the user to choose
+    String? ch;
+    do {
+      if (notes.isNotEmpty) {
+        displayNotes();
+        stdout.write("\t\tEnter the Number of the Note you want to delete: ");
+        int x = (int.parse(stdin.readLineSync()!) - 1);
+        if (x < notes.length) {
+          notes.removeAt(x);
+          print("\n\t\t~Note Deleted!");
+          displayNotes();
+
+          stdout.write("\n\t\t\tReturn to menu?(y/n): ");
+          ch = stdin.readLineSync();
+        }
+      } else {
+        print("\t\tThere are no notes stored in the system, please try again.");
+        return;
+      }
+    } while (ch != 'y');
+  }
+
+  static void editNote() { //edit note info: title or content or both 
+    int ch;
+    String? re;
+    int i;
+    if (notes.isNotEmpty) {
+      do{
+      
+      String update;
+      displayNotes();
+      stdout.write("\t\tEnter the Number of the Note you want to edit: ");
+      i = (int.parse(stdin.readLineSync()!) - 1);
+
+      while((i+1)>notes.length || (i+1)<0){
+        stdout.write("\n\t\t~Invalid choice!");
+        print("\n\t\t~Please enter a number from the list below");
+        displayNotes();
+        stdout.write("\t\tYoure Choice: ");
+        i = (int.parse(stdin.readLineSync()!) - 1);
+      }
+      print("\n\t\t---------------NOTE OPEN-----------------");
+      print(
+          "\n\t\tTitle: ${notes[i].getTitle()}\n\t\tContent:\n\t\t${notes[i].getBody()}\n");
+      print("\t\tLast modified: ${notes[i].getDate()}");
+      stdout.write("\t\t~what do you wnat to edit? " +
+          "\n\t\t1 - Note Tile\n\t\t2 - Note Content\n\t\t3 - Both\n\t\tYour Choice: ");
+      ch = int.parse(stdin.readLineSync()!);
+      switch(ch){ 
+        case 1:
+          stdout.write("\n\t\tEnter new title: ");
+          update = stdin.readLineSync()!;
+          notes[i].setTitle(update);
+          notes[i].setDate(DateTime.now());
+          break;
+        case 2:
+          stdout.write("\n\t\tEnter new content: ");
+          update = stdin.readLineSync()!;
+          notes[i].setBody(update);
+          notes[i].setDate(DateTime.now());
+          break;
+        case 3:
+          stdout.write("\n\t\tEnter new title: ");
+          update = stdin.readLineSync()!;
+          notes[i].setTitle(update);
+          stdout.write("\n\t\tEnter new content: ");
+          update = stdin.readLineSync()!;
+          notes[i].setBody(update);
+          notes[i].setDate(DateTime.now());
+          break;
+
+      }
+      print("\n\t\t---------------Updated Note-----------------");
+      print("\t\tTitle: ${notes[i].getTitle()}\n\t\tContent\n\t\t${notes[i].getBody()}");
+      print("\t\tLast modified: ${notes[i].getDate()}");
+      
+
+      stdout.write("\n\t\t~Do you want to return to the menu?(y/n): ");
+      re=stdin.readLineSync();
+      }while(re!='y');
+    } else {
+      print("\t\tThere is no notes in the system");
+    }
+  }
+
+  static void searchNote() { // search for a note by note title
+    
+    if (notes.isNotEmpty) {
+      print("\t********************Seraching Note********************");
+      stdout.write("\t\tPlease Enter The Note Title:");
+
+      String? title = stdin.readLineSync();
+
+      bool flag = false;
+      int? index;
+      for (int i = 0; i < notes.length; i++) {
+        if (title == notes[i].getTitle()) {
+          flag = true;
+          index = i;
+          break;
+        }
+      }
+
+      if (flag) {
+        print("\t\t~Note has been found!");
+        print("\n\t\t---------------NOTE OPEN-----------------");
+        print("\n\t\tNote title: ${notes[index!].getTitle()}\n\t\tContent:\n\t\t${notes[index].getBody()}");
+      } else {
+        print("\t\t~Note has not been found in the system");
+      }
+    } else {
+      print("\t\tThere is no notes in the system");
+    }
   }
 }
diff --git a/src/core/utils.dart b/src/core/utils.dart
index 289a24d..6c0e77f 100644
--- a/src/core/utils.dart
+++ b/src/core/utils.dart
@@ -1 +1 @@
-// TODO: Add any utility functions here
\ No newline at end of file
+// TODO: Add any utility functions here
diff --git a/src/main.dart b/src/main.dart
index 88398d1..441f92e 100644
--- a/src/main.dart
+++ b/src/main.dart
@@ -1,5 +1,37 @@
 import 'core/note_app.dart';
+import 'dart:io';
+
 
 void main(List<String> args) {
-  NoteApp().run();
+  int? choice; // stores the user choice
+  
+  do {
+    
+    try { // try block for invalid input
+      Menu();
+      choice = int.parse(stdin.readLineSync()!);
+
+      switch (choice) {
+        case 1:
+          NoteApp.addNote();
+          break;
+        case 2:
+          NoteApp.editNote();
+          break;
+        case 3:
+          NoteApp.deleteNote();
+        case 4:
+          NoteApp.searchNote();
+          break;
+      }
+    } on FormatException {
+      print("\t\tInvalid Choice: Enter only numbers Please!");
+    }
+  } while (choice != 5);
+}
+
+void Menu() { // print the menue
+  stdout.write("\n\n\t********************Note Taking App********************\n\n" +
+            "\t\t1- Create new note\n\t\t2- Edit a note\n\t\t3- Delete a note\n\t\t"
+            +"4- Search for a note\n\t\t5- Exit\n\t\tYour Choice: ");
 }
diff --git a/src/models/note_model.dart b/src/models/note_model.dart
index 788b69e..d190834 100644
--- a/src/models/note_model.dart
+++ b/src/models/note_model.dart
@@ -1,2 +1,38 @@
 //TODO: Define a note model class
-class NoteModel {}
+
+class Note {
+  String _title; // note title
+  String _body; // note content
+
+  DateTime _dateModified=DateTime.now(); // time record
+
+  //constructor
+  Note(this._title,this._body) {
+  
+  }
+  //GETTERS
+  String getTitle() {
+    return _title;
+  }
+
+  String getBody() {
+    return _body;
+  }
+  DateTime getDate() {
+    return _dateModified;
+  }
+
+  //SETTERS
+  void setTitle(String title) {
+    this._title = title;
+  }
+
+  void setBody(String body) {
+    this._body = body;
+  }
+
+  
+  void setDate(DateTime newDate) {
+    this._dateModified = newDate;
+  }
+}