Create ToDoList.java

JAVA/ToDoList.java

@@ -0,0 +1,70 @@
+// This program allows users to add tasks, view tasks, mark tasks as completed, and exit the program.
+
+import java.util.ArrayList;
+import java.util.Scanner;
+
+class Task {
+    String description;
+    boolean isCompleted;
+
+    Task(String description) {
+        this.description = description;
+        this.isCompleted = false;
+    }
+}
+
+public class ToDoList {
+    private static ArrayList<Task> tasks = new ArrayList<>();
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("1. Add Task");
+            System.out.println("2. View Tasks");
+            System.out.println("3. Mark Task as Completed");
+            System.out.println("4. Exit");
+            System.out.print("Enter your choice: ");
+            int choice = scanner.nextInt();
+            scanner.nextLine();  // Consume the newline character after nextInt()
+
+            switch (choice) {
+                case 1:
+                    System.out.print("Enter task description: ");
+                    String description = scanner.nextLine();
+                    Task task = new Task(description);
+                    tasks.add(task);
+                    System.out.println("Task added successfully!");
+                    break;
+                case 2:
+                    if (tasks.isEmpty()) {
+                        System.out.println("No tasks found.");
+                    } else {
+                        System.out.println("Tasks:");
+                        for (int i = 0; i < tasks.size(); i++) {
+                            Task currentTask = tasks.get(i);
+                            System.out.println((i + 1) + ". " + (currentTask.isCompleted ? "[Completed] " : "") + currentTask.description);
+                        }
+                    }
+                    break;
+                case 3:
+                    System.out.print("Enter the task number to mark as completed: ");
+                    int taskNumber = scanner.nextInt();
+                    if (taskNumber >= 1 && taskNumber <= tasks.size()) {
+                        Task selectedTask = tasks.get(taskNumber - 1);
+                        selectedTask.isCompleted = true;
+                        System.out.println("Task marked as completed!");
+                    } else {
+                        System.out.println("Invalid task number.");
+                    }
+                    break;
+                case 4:
+                    System.out.println("Exiting program. Goodbye!");
+                    System.exit(0);
+                    break;
+                default:
+                    System.out.println("Invalid choice. Please try again.");
+                    break;
+            }
+        }
+    }
+}