feat: adds new exceptoons in ecommerance , adds more code in both exceptions to extend

Author: AmiyahJo

lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/Lesson14.java

@@ -1,20 +1,21 @@
 package com.codedifferently.lesson14;
 
-import com.codedifferently.lesson14.ecommerce.EcommerceSystem;
-import com.codedifferently.lesson14.ecommerce.OrderNotFoundException;
-import com.codedifferently.lesson14.ecommerce.ProductNotFoundException;
+// import com.codedifferently.lesson14.ecommerce.EcommerceSystem;
+// import com.codedifferently.lesson14.ecommerce.OrderNotFoundException;
+// import com.codedifferently.lesson14.ecommerce.ProductNotFoundException;
 
 public class Lesson14 {
 
   public static void main(String[] args) {
-  String orderId = null;
-    try {
-      orderId = ecommerceSystem.placeOrder("1", 1);  
-    } catch (ProductNotFoundException e) {
-      System.out.println("Product with ID " + "1" + " not found.");
-    } catch (OrderNotFoundException e){
-      System.out.println("Order with ID " + orderId + " not found.");
-    }
+    System.out.println("Hello world");
+  // String orderId = null;
+  //   try {
+  //     orderId = ecommerceSystem.placeOrder("1", 1);  
+  //   } catch (ProductNotFoundException e) {
+  //     System.out.println("Product with ID " + "1" + " not found.");
+  //   } catch (OrderNotFoundException e){
+  //     System.out.println("Order with ID " + orderId + " not found.");
+  //   }
   }
 }
 

lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/EcommerceSystem.java

@@ -17,8 +17,11 @@ public void addProduct(String productId, String name) {
     products.put(productId, new Product(productId, name));
   }
 
-  public String placeOrder(String productId, int quantity) {
+  public String placeOrder(String productId, int quantity) throws ProductNotFoundException {
     Product product = products.get(productId);
+    if (product == null) {
+      throw new ProductNotFoundException("Product with ID " + productId + " not found.");
+    }
     String orderId = UUID.randomUUID().toString();
     orders.put(orderId, new Order(orderId, product, quantity));
     return orderId;
@@ -28,8 +31,11 @@ public void cancelOrder(String orderId) {
     orders.remove(orderId);
   }
 
-  public String checkOrderStatus(String orderId) {
+  public String checkOrderStatus(String orderId) throws OrderNotFoundException {
     Order order = orders.get(orderId);
+    if (order == null) {
+      throw new OrderNotFoundException("Order with ID " + orderId + " not found");
+    }
     return "Order ID: "
         + orderId
         + ", Product: "

lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/OrderNotFoundException.java

@@ -5,4 +5,8 @@
 
 package com.codedifferently.lesson14.ecommerce;
 
-class OrderNotFoundException {}
+class OrderNotFoundException extends Exception {
+    public OrderNotFoundException(String message) {
+        super(message);
+    }
+}

lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/ProductNotFoundException.java

@@ -5,4 +5,8 @@
 
 package com.codedifferently.lesson14.ecommerce;
 
-class ProductNotFoundException {}
+class ProductNotFoundException extends Exception {
+    public ProductNotFoundException(String message) {
+        super(message);
+    }
+}