updated classes

Customer.java

@@ -0,0 +1,30 @@
+public class Customer {
+     Request request;    
+    public String name;
+    
+public Customer(String name,Request request) {
+        this.name = name;
+        this.request = request;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Request getRequest() {
+        return request;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setRequest(Request request) {
+        this.request = request;
+    }
+    public void addMealToRequest(Meal meal){
+request.mealRequest.add(meal);      
+    } 
+
+}
+

Employee.java

@@ -0,0 +1,32 @@
+public class Employee extends User {
+ Request request;    
+    Store store;
+    public Employee( String name, String password) {
+        super(name, password);
+    } 
+/*public void addMealToStore(Meal meal){
+store.mealStore.add(meal);
+} */
+public void addMealToRequest(Meal meal){
+request.mealRequest.add(meal);    
+}
+public void deleteMealFromRequest(Meal meal){
+request.mealRequest.remove(meal);    
+}
+public void addItemToStore(Item item, int quantity){
+store.itemStore.put(item, quantity);      
+}
+/*public void deleteMealFromStore(Meal meal){
+store.mealStore.remove(meal);       
+}*/
+public void deleteItemFromStore(Item item){
+store.itemStore.remove(item);
+}
+public void setRequest(Request request){
+this.request = request;     
+}
+public void addItemtoMeal(Meal meal , Item item){
+meal.items.add(item);     
+}
+
+}

FileManagement.java

@@ -0,0 +1,3 @@
+public class FileManagement {
+    
+}

Item.java

@@ -0,0 +1,37 @@
+public class Item {
+    public String name;
+    public double price;
+    public String typeOfItem;
+    
+    public Item(String name, double price, String typeOfItem    ) {
+        this.name = name;
+        this.price = price;
+        this.typeOfItem = typeOfItem;
+          
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public String getTypeOfItem() {
+        return typeOfItem;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    public void setTypeOfItem(String typeOfItem) {
+        this.typeOfItem = typeOfItem;
+    }
+    
+}

Main.java

@@ -1,6 +1,7 @@
 public class Main {
 public static void main(String[] args) {
-    
+    System.out.println("Welcome to our restaurant management system!"
+    );
 }
     
 }

Manager.java

@@ -0,0 +1,8 @@
+public class Manager extends User {
+     
+    Store store;    
+    public Manager( String name, String password) {
+        super(name, password);  
+    }       
+
+}

Meal.java

@@ -0,0 +1,31 @@
+
+import java.util.ArrayList;
+
+
+public class Meal {
+  ArrayList<Item>items = new ArrayList<>();
+    double totalPrice;
+    public Meal(ArrayList<Item> items) {
+        this.items = items;
+        for (Item item : items) {
+            totalPrice += item.price ;
+        }
+    }  
+
+    public ArrayList<Item> getItems() {
+        return items;
+    }
+
+    public double getTotalPrice() {
+        return totalPrice;
+    }
+
+    public void setItems(ArrayList<Item> items) {
+        this.items = items;
+    }
+
+    public void setTotalPrice(double totalPrice) {
+        this.totalPrice = totalPrice;
+    }
+     
+}

User.java

@@ -1,10 +1,10 @@
 public class User {
-    private int id;
+    private  static int id;
     private String name;
     private String password;
 
-    public User(int id, String name, String password) {
+    public User( String name, String password) {
-        this.id = id;
+       id++;
         this.name = name;
         this.password = password;
     }
@@ -21,10 +21,6 @@ public class User {
         return password;
     }
 
-    public void setId(int id) {
-        this.id = id;
-    }
-
     public void setName(String name) {
         this.name = name;
     }