The code is complete, but it has some bugs that need fixing.

src/main/java/Main.java

@@ -17,49 +17,13 @@ public class Main {
         while (scanner.hasNextLine())
         {
             String ln = scanner.nextLine() ;
-            int part_number = 0 ;
+            String[] part  = ln.split(",");
-            String part  = "";
+            String product_id = part[0] ;
-            String product_id = "" ;
+            String product_name = part[1] ;
-            String product_name = "" ;
+            String product_price = part[2] ;
-            String product_price = "" ;
-            for (char x : ln.toCharArray() )
-            {
 
-                  if (x != ',')
+            productCatalog.add(new Product(Integer.parseInt(product_id), product_name , Float.parseFloat(product_price))) ;
-                  {
-                      part = part + x ;
-                  }
-                  else if (x == ',')
-                  {
-                      switch (part_number)
-                      {
-                          case 0 :
-                              product_id = part ;
-                              part = "" ;
-                              part_number ++ ;
-                              break;
 
-                          case  1 :
-                              product_name = part ;
-                              part = "" ;
-                              part_number ++ ;
-                              break;
-
-                          case 2 :
-                              product_price = part ;
-                              part = "" ;
-                              part_number ++ ;
-                              break;
-
-
-                      }
-                  }
-
-                  productCatalog.add(new Product(Integer.parseInt(product_id), product_name , Float.parseFloat(product_price))) ;
-
-
-
-            }
         }
 
         // TODO:

src/main/java/ReportGenerator.java

@@ -1,3 +1,5 @@
+import java.io.BufferedWriter;
+import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;
@@ -27,53 +29,20 @@ public class ReportGenerator {
     }
 
     public void processFile() throws IOException {
-        InputStream input = ReportGenerator.class
+        InputStream input = getClass().getClassLoader().getResourceAsStream (ordersFilePath);
-                .getClassLoader()
-                .getResourceAsStream("products.csv");
         if (input == null) {
-            throw new IOException("products.csv not found");
+            throw new IOException("not found");
         }
         Scanner scanner = new Scanner(input);
         while (scanner.hasNextLine())
         {
             String ln = scanner.nextLine() ;
-            int part_number = 0 ;
+            String[] part = ln.split(",") ;
-            String part  = "";
+            String product_id = part[0] ;
-            String product_id = "" ;
+            String product_number = part[1] ;
-            String product_number = "" ;
+            String product_discount = part[2] ;
-            String product_discount = "" ;
-            for (char x : ln.toCharArray() )
-            {
-
-                if (x != ',')
-                {
-                    part = part + x ;
-                }
-                else if (x == ',')
-                {
-                    switch (part_number)
-                    {
-                        case 0 :
-                            product_id = part ;
-                            part = "" ;
-                            part_number ++ ;
-                            break;
-
-                        case  1 :
-                            product_number = part ;
-                            part = "" ;
-                            part_number ++ ;
-                            break;
-
-                        case 2 :
-                            product_discount = part ;
-                            part = "" ;
-                            part_number ++ ;
-                            break;
 
 
-                    }
-                }
 
                 if (isNumber(product_id) && isNumber(product_number ) && isNumber(product_discount))
                 {
@@ -97,6 +66,17 @@ public class ReportGenerator {
                         totalInvalidLines ++ ;
                         continue;
                     }
+                    for (Product p : productList)
+                    {
+                        if (p.getProductID() == id)
+                        {
+                            totalFinalCost = totalFinalCost + ((p.getPrice()*(100-discount)/100)*number) ;
+                            totalDiscountValue = totalDiscountValue + ((p.getPrice()*discount/100)*number);
+                        }
+
+                    }
+                    totalQuantity ++ ;
+
 
 
                 }
@@ -151,8 +131,22 @@ public class ReportGenerator {
         // 12. Close all file resources
     }
 
-    public void saveReport()
+    public void saveReport() throws IOException {
-    {
+        BufferedWriter writer = new BufferedWriter(new FileWriter("report.txt")) ;
+        writer.write("========= SALES REPORT =========");
+        writer.newLine();
+        writer.write("Total Quantity Sold:" + totalQuantity);
+        writer.newLine();
+        writer.write("Total Final Cost: $" + totalFinalCost);
+        writer.newLine();
+        writer.write("Total Discount Value: $" + totalDiscountValue);
+        writer.newLine();
+        writer.write("Invalid Rows: " + totalInvalidLines);
+        writer.newLine();
+        writer.close();
+
+
+
         // TODO:
         // 1. Build a formatted report string
         // 2. Include:
@@ -176,5 +170,3 @@ public class ReportGenerator {
     }
 }
 
-    public void saveReport() {
-    }