Das ganze Reservierungssystem implementiert.

Restaurantverwaltung/src/Reservation.java

@@ -1,4 +1,4 @@
-class Reservation {
+public class Reservation implements Comparable<Reservation>{
     private int tableNumber;
     private String customerName;
 
@@ -6,4 +6,24 @@ class Reservation {
         this.tableNumber = tableNumber;
         this.customerName = customerName;
     }
+
+    public int getTableNumber() {
+        return tableNumber;
+    }
+
+    public void setTableNumber(int tableNumber) {
+        this.tableNumber = tableNumber;
+    }
+
+    public String getCustomerName() {
+        return customerName;
+    }
+
+    public void setCustomerName(String customerName) {
+        this.customerName = customerName;
+    }
+    @Override
+    public int compareTo(Reservation other) {
+        return Integer.compare(this.tableNumber, other.tableNumber);
+    }
 }

Restaurantverwaltung/src/ReservationManager.java

@@ -0,0 +1,77 @@
+import java.io.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class ReservationManager {
+    private List<Reservation> reservations;
+    private final String filePath = "src/Reservations.txt"; 
+
+    public ReservationManager() {
+        reservations = new ArrayList<>();
+        loadReservations(); 
+    }
+
+    public void createReservation(int tableNumber, String customerName) {
+        Reservation reservation = new Reservation(tableNumber, customerName);
+        reservations.add(reservation);
+        saveReservations(); // Reservierungen nach jedem Erstellen speichern
+    }
+
+    public void editReservation(int tableNumber, String newCustomerName) {
+        for (Reservation reservation : reservations) {
+            if (reservation.getTableNumber() == tableNumber) {
+                reservation.setCustomerName(newCustomerName);
+                saveReservations(); // Reservierungen nach Bearbeitung speichern
+                break;
+            }
+        }
+    }
+
+    public void cancelReservation(int tableNumber) {
+        reservations.removeIf(reservation -> reservation.getTableNumber() == tableNumber);
+        saveReservations(); 
+    }
+
+
+    private void saveReservations() {
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(filePath))) {
+            for (Reservation reservation : reservations) {
+                writer.write(reservation.getTableNumber() + "," + reservation.getCustomerName());
+                writer.newLine(); 
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void loadReservations() {
+        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                String[] data = line.split(",");
+                int tableNumber = Integer.parseInt(data[0]);
+                String customerName = data[1];
+                Reservation reservation = new Reservation(tableNumber, customerName);
+                reservations.add(reservation);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public List<Reservation> getReservations() {
+        return reservations;
+    }
+
+    public void displayTableOverview() {
+    	 if (reservations.isEmpty()) {
+    	        System.out.println("Keine Reservierungen vorhanden.");
+    	    } else {
+    	    	Collections.sort(reservations);
+    	        for (Reservation reservation : reservations) {
+    	            System.out.println("Tischnummer: " + reservation.getTableNumber() + " | Kundenname: " + reservation.getCustomerName());
+    	        }
+    	    }
+    }
+}

Restaurantverwaltung/src/Reservations.txt

@@ -0,0 +1,2 @@
+1,Dimimtry
+2,Ali und Arim

Restaurantverwaltung/src/SystemController.java

@@ -8,6 +8,7 @@ class SystemController {
     public static Inventory inventory = new Inventory();
     private Menu menu = new Menu();
     private FinancialManager financialManager = new FinancialManager();
+    private ReservationManager reservationManager = new ReservationManager();
 
     public SystemController() {
         loadUsersFromFile();
@@ -38,43 +39,80 @@ class SystemController {
         return null;
     }
 
-    private void displayMainMenu(User user) {
+    public void displayMainMenu(User user) {
         boolean running = true;
         while (running) {
-            inventory.loadStockFromFile();
             System.out.println("\n--- Hauptmenü ---");
             System.out.println("1. Bestand verwalten");
             System.out.println("2. Neuer Nutzer erstellen");
             System.out.println("3. Menü anzeigen");
             System.out.println("4. Bestellungen verwalten");
             System.out.println("5. Finanzbericht anzeigen");
-            System.out.println("6. Beenden");
+            System.out.println("6. Reservierungen verwalten");
-
+            System.out.println("7. Beenden");
             System.out.print("Bitte wähle eine Option: ");
             int choice = scanner.nextInt();
-            scanner.nextLine(); // Eingabepuffer leeren
+            scanner.nextLine(); 
-
             switch (choice) {
                 case 1 -> manageInventory();
-                case 2 -> {
+                case 2 -> { if (user.role == Role.MANAGER) { createUser(); } else { System.out.println("Keine Rechte, um neue Nutzer zu erstellen."); } }
-                    if (user.role == Role.MANAGER) {
-                        createUser();
-                    } else {
-                        System.out.println("Keine Rechte, um neue Nutzer zu erstellen.");
-                    }
-                }
                 case 3 -> menu.displayMenu(inventory);
-                case 4 -> manageOrders(); // Übergibt an Bestellsystem
+                case 4 -> manageOrders();
-                case 5 -> showFinancialReports(); // Anzeige der Finanzberichte
+                case 5 -> showFinancialReports();
-                case 6 -> {
+                case 6 -> manageReservations();
-                    running = false;
+                case 7 -> { running = false; System.out.println("System wird beendet. Auf Wiedersehen!"); }
-                    System.out.println("System wird beendet. Auf Wiedersehen!");
-                }
                 default -> System.out.println("Ungültige Auswahl. Bitte versuche es erneut.");
             }
         }
     }
 
+    private void manageReservations() {
+        boolean managingReservations = true;
+        while (managingReservations) {
+            System.out.println("\n--- Reservierungen verwalten ---");
+            System.out.println("1. Reservierung erstellen");
+            System.out.println("2. Reservierung bearbeiten");
+            System.out.println("3. Reservierung stornieren");
+            System.out.println("4. Reservierungen anzeigen");
+            System.out.println("5. Zurück zum Hauptmenü");
+            System.out.print("Bitte wähle eine Option: ");
+            int choice = scanner.nextInt();
+            scanner.nextLine(); // Eingabepuffer leeren
+            switch (choice) {
+                case 1 -> createReservation();
+                case 2 -> editReservation();
+                case 3 -> cancelReservation();
+                case 4 -> reservationManager.displayTableOverview();
+                case 5 -> managingReservations = false;
+                default -> System.out.println("Ungültige Auswahl. Bitte versuche es erneut.");
+            }
+        }
+    }
+
+    private void createReservation() {
+        System.out.print("Tischnummer: ");
+        int tableNumber = scanner.nextInt();
+        scanner.nextLine();
+        System.out.print("Kundenname: ");
+        String customerName = scanner.nextLine();
+        reservationManager.createReservation(tableNumber, customerName);
+    }
+
+    private void editReservation() {
+        System.out.print("Tischnummer der Reservierung: ");
+        int tableNumber = scanner.nextInt();
+        scanner.nextLine();
+        System.out.print("Neuer Kundenname: ");
+        String newCustomerName = scanner.nextLine();
+        reservationManager.editReservation(tableNumber, newCustomerName);
+    }
+
+    private void cancelReservation() {
+        System.out.print("Tischnummer der Reservierung: ");
+        int tableNumber = scanner.nextInt();
+        reservationManager.cancelReservation(tableNumber);
+    }
+    
     private void manageInventory() {
         boolean managingInventory = true;
         while (managingInventory) {

Restaurantverwaltung/src/users.txt

@@ -1,3 +1,3 @@
 Dimitry:1234:MANAGER
-Abbas:1234:SERVICE
+Abbas:1234:MANAGER
 Ananas Kopf:Bananenbieger:KITCHEN