todo list program added

Author: swastijain132005

Src/To-Do-List/todo.cpp

@@ -0,0 +1,139 @@
+#include <iostream>
+#include <vector>
+#include <string>
+using namespace std;
+
+// Class representing a single Task
+class Task {
+private:
+    string title;
+    bool isCompleted;
+
+public:
+    // Constructor
+    Task(string t) {
+        title = t;
+        isCompleted = false;
+    }
+
+    // Mark task as completed
+    void markCompleted() {
+        isCompleted = true;
+    }
+
+    // Get task title
+    string getTitle() const {
+        return title;
+    }
+
+    // Check completion status
+    bool getStatus() const {
+        return isCompleted;
+    }
+};
+
+// Class representing the To-Do List
+class ToDoList {
+private:
+    vector<Task> tasks;
+
+public:
+    // Add a new task
+    void addTask(const string& title) {
+        tasks.push_back(Task(title));
+        cout << "Task added successfully!\n";
+    }
+
+    // Display all tasks
+    void showTasks() const {
+        if (tasks.empty()) {
+            cout << "No tasks available!\n";
+            return;
+        }
+
+        cout << "\n------ To-Do List ------\n";
+        for (size_t i = 0; i < tasks.size(); ++i) {
+            cout << i + 1 << ". " << tasks[i].getTitle()
+                 << " [" << (tasks[i].getStatus() ? "Done" : "Pending") << "]\n";
+        }
+        cout << "------------------------\n";
+    }
+
+    // Mark a task as completed
+    void markTaskCompleted(int index) {
+        if (index < 1 || index > (int)tasks.size()) {
+            cout << "Invalid task number!\n";
+            return;
+        }
+        tasks[index - 1].markCompleted();
+        cout << "Task marked as completed!\n";
+    }
+
+    // Delete a task
+    void deleteTask(int index) {
+        if (index < 1 || index > (int)tasks.size()) {
+            cout << "Invalid task number!\n";
+            return;
+        }
+        tasks.erase(tasks.begin() + index - 1);
+        cout << "Task deleted successfully!\n";
+    }
+};
+
+// Main program
+int main() {
+    ToDoList todo;
+    int choice;
+    string title;
+    int index;
+
+    cout << "\n===== TO-DO LIST APPLICATION =====\n";
+    cout << "Manage your daily tasks efficiently.\n";
+
+    do {
+        cout << "\nMenu:\n";
+        cout << "1. Add Task\n";
+        cout << "2. View Tasks\n";
+        cout << "3. Mark Task as Completed\n";
+        cout << "4. Delete Task\n";
+        cout << "5. Exit\n";
+        cout << "Enter your choice: ";
+        cin >> choice;
+        cin.ignore(); // To handle newline
+
+        switch (choice) {
+        case 1:
+            cout << "Enter task title: ";
+            getline(cin, title);
+            todo.addTask(title);
+            break;
+
+        case 2:
+            todo.showTasks();
+            break;
+
+        case 3:
+            cout << "Enter task number to mark completed: ";
+            cin >> index;
+            todo.markTaskCompleted(index);
+            break;
+
+        case 4:
+            cout << "Enter task number to delete: ";
+            cin >> index;
+            todo.deleteTask(index);
+            break;
+
+        case 5:
+            cout << "Exiting program. Goodbye!\n";
+            break;
+
+        default:
+            cout << "Invalid choice. Try again!\n";
+        }
+    } while (choice != 5);
+
+    return 0;
+}
+
+