Ajout du Gestionnaire de Tâches en Java

TaskManagerCLI/TaskManager.java

@@ -0,0 +1,133 @@
+import java.io.*;
+import java.util.*;
+
+// Classe interne, non publique
+class Task implements Serializable {
+    private static final long serialVersionUID = 1L;
+    private String description;
+    private boolean done;
+
+    public Task(String description) {
+        this.description = description;
+        this.done = false;
+    }
+
+    public void markDone() {
+        this.done = true;
+    }
+
+    public boolean isDone() {
+        return done;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public String toString() {
+        return (done ? "[X] " : "[ ] ") + description;
+    }
+}
+
+// Classe principale, publique
+public class TaskManager {
+    private static final String FILE_NAME = "tasks.dat";
+    private List<Task> tasks;
+
+    public TaskManager() {
+        tasks = loadTasks();
+    }
+
+    public void addTask(String description) {
+        tasks.add(new Task(description));
+        saveTasks();
+    }
+
+    public void listTasks() {
+        if (tasks.isEmpty()) {
+            System.out.println("Aucune tâche.");
+            return;
+        }
+        for (int i = 0; i < tasks.size(); i++) {
+            System.out.println((i + 1) + ". " + tasks.get(i));
+        }
+    }
+
+    public void markTaskDone(int index) {
+        if (index >= 1 && index <= tasks.size()) {
+            tasks.get(index - 1).markDone();
+            saveTasks();
+        } else {
+            System.out.println("Index invalide.");
+        }
+    }
+
+    public void deleteTask(int index) {
+        if (index >= 1 && index <= tasks.size()) {
+            tasks.remove(index - 1);
+            saveTasks();
+        } else {
+            System.out.println("Index invalide.");
+        }
+    }
+
+    private void saveTasks() {
+        try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(FILE_NAME))) {
+            out.writeObject(tasks);
+        } catch (IOException e) {
+            System.out.println("Erreur lors de la sauvegarde des tâches.");
+        }
+    }
+    @SuppressWarnings("unchecked")
+    private List<Task> loadTasks() {
+        try (ObjectInputStream in = new ObjectInputStream(new FileInputStream(FILE_NAME))) {
+            return (List<Task>) in.readObject();
+        } catch (IOException | ClassNotFoundException e) {
+            return new ArrayList<>();
+        }
+    }
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        TaskManager manager = new TaskManager();
+
+        System.out.println("=== Gestionnaire de Tâches ===");
+
+        while (true) {
+            System.out.println("\n1. Ajouter une tâche");
+            System.out.println("2. Marquer une tâche comme terminée");
+            System.out.println("3. Supprimer une tâche");
+            System.out.println("4. Lister les tâches");
+            System.out.println("5. Quitter");
+            System.out.print("Choix: ");
+            String choice = scanner.nextLine();
+
+            switch (choice) {
+                case "1":
+                    System.out.print("Description de la tâche: ");
+                    String desc = scanner.nextLine();
+                    manager.addTask(desc);
+                    break;
+                case "2":
+                    manager.listTasks();
+                    System.out.print("Numéro de la tâche à marquer comme terminée: ");
+                    manager.markTaskDone(Integer.parseInt(scanner.nextLine()));
+                    break;
+                case "3":
+                    manager.listTasks();
+                    System.out.print("Numéro de la tâche à supprimer: ");
+                    manager.deleteTask(Integer.parseInt(scanner.nextLine()));
+                    break;
+                case "4":
+                    manager.listTasks();
+                    break;
+                case "5":
+                    System.out.println("Au revoir !");
+                    return;
+                default:
+                    System.out.println("Choix invalide.");
+            }
+        }
+    }
+}