implement Main.java

src/main/java/Main.java

@@ -7,23 +7,32 @@ import java.util.Scanner;
 public class Main {
     static ArrayList<Product> productCatalog = new ArrayList<>();
     public static void loadProducts() throws IOException{
+
         InputStream input = Main.class
                 .getClassLoader()
                 .getResourceAsStream("products.csv");
         if (input == null) {
             throw new IOException("products.csv not found");
         }
-        Scanner scanner = new Scanner(input);
 
-        // TODO:
-        // - Read each line from products.csv
-        // - For each line, parse productId, name, and price
-        // - The format of the file is like this:
-        //      [productId],[name],[price]
-        // - Store Product objects in the productCatalog ArrayList
+        Scanner in = new Scanner(input);
 
-        // NOTE
-        // - The data in products.csv is guaranteed to be valid.
+        int productId;
+        String name;
+        double price;
+
+
+        while (in.hasNextLine()) {
+
+            Scanner line = new Scanner(in.nextLine());
+            line.useDelimiter(",");
+            productId = line.nextInt();
+            name = line.next();
+            price = line.nextDouble();
+
+            productCatalog.add(new Product(productId, name, price));
+        }
+        in.close();
     }
 
     public static void main(String[] args)
@@ -34,7 +43,11 @@ public class Main {
             System.err.println("Error reading products");
             System.out.println("Terminating the program...");
             return;
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
         }
+
+
         System.out.println("=== Products loaded");
 
         ReportGenerator reportGenerator = new ReportGenerator("2025_order_details.csv", Collections.unmodifiableList(productCatalog));