Feat: adds Ecommerce Exception Code

Author: PabLim-Par

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 1 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 1 not found");
+    }
     return "Order ID: "
         + orderId
         + ", Product: "

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

@@ -9,7 +9,7 @@ public Product(String productId, String name) {
     this.name = name;
   }
 
-  public String getProductId() /*throws ProductNotFoundException*/ {
+  public String getProductId() {
     if (productId == null) {
       try {
         throw new ProductNotFoundException("The product ID can not be found.");
@@ -20,7 +20,7 @@ public String getProductId() /*throws ProductNotFoundException*/ {
     return productId;
   }
 
-  public String getName() /*throws ProductNotFoundException*/ {
+  public String getName() {
     if (name == null) {
       try {
         throw new ProductNotFoundException("Nothing matches that name");