task2-1//Shoug8S//

dart_application2.dart

@@ -0,0 +1,119 @@
+import 'dart:io';
+
+void main(List<String> arguments) {
+  int? ch;
+  while (ch != 5) {
+    mnue();
+
+    ch = int.parse(stdin.readLineSync()!);
+
+    switch (ch) {
+      case 1:
+        Create_note();
+        break;
+      case 2:
+        Edit_note();
+        break;
+      case 3:
+        Delete_note();
+        break;
+      case 4:
+        Search_note();
+        break;
+      case 5:
+        print("Exit successfully");
+        break;
+      default:
+        print("Please enter a valid number!");
+        break;
+    }
+  }
+}
+
+void mnue() {
+  print('Welcome to our note app:');
+  print('1. Create a note');
+  print('2. Edit a note');
+  print('3. Delete a note');
+  print('4. Search for a note');
+  print('5. Exit');
+}
+
+void Create_note() {
+  print("Enter the title of the note:");
+  String? title = stdin.readLineSync();
+  print("Write your note here:");
+  String? content = stdin.readLineSync();
+  Note newNote = Note(
+    title: title!,
+    content: content!,
+  );
+  Note.notes.add(newNote);
+  print("Note created.");
+}
+
+void Edit_note() {
+  print("Enter the title of the note to edit:");
+  String? title = stdin.readLineSync();
+  print("Enter the new content:");
+  String? content = stdin.readLineSync();
+
+  bool found = false;
+  for (var note in Note.notes) {
+    if (note.title == title) {
+      found = true;
+      note.content = content!;
+      print("Note edited.");
+      break;
+    }
+  }
+  if (!found) {
+    print("Note not found!");
+  }
+}
+
+void Delete_note() {
+  print("Enter the title of the note to delete:");
+  String? title = stdin.readLineSync();
+
+  bool found = false;
+  for (var note in Note.notes) {
+    if (note.title == title) {
+      found = true;
+      Note.notes.remove(note);
+      print("Note deleted.");
+      break;
+    }
+  }
+  if (!found) {
+    print("Note not found!");
+  }
+}
+
+void Search_note() {
+  print("Enter the title of the note to search:");
+  String? title = stdin.readLineSync();
+
+  bool found = false;
+  for (var note in Note.notes) {
+    if (note.title == title) {
+      found = true;
+      print("Note found. Content: ${note.content}");
+      break;
+    }
+  }
+  if (!found) {
+    print("Note not found!");
+  }
+}
+
+class Note {
+  static List<Note> notes = [];
+  late String title;
+  late String content;
+
+  Note({
+    required this.title,
+    required this.content,
+  });
+}