fix: extra error messages

CarManagerV3/Car.cs

@@ -86,8 +86,20 @@ namespace CarManagerV3
         /// </returns>
         public static Car FromCsvString(string csv)
         {
-            string[] parts = csv.Split(';');
-            return new Car(int.Parse(parts[0]), parts[1], parts[2], int.Parse(parts[3]), parts[4], int.Parse(parts[5]), decimal.Parse(parts[6]));
+            try
+            {
+                string[] parts = csv.Split(';');
+                Car temp = new Car(int.Parse(parts[0]), parts[1], parts[2], int.Parse(parts[3]), parts[4], int.Parse(parts[5]), decimal.Parse(parts[6]));
+                if (temp.Year < 1886 || temp.Year > DateTime.Now.Year + 1) throw new Exception($"Invalid year: {temp.Year}");
+                if (temp.Mileage < 0) throw new Exception($"Mileage cannot be negative: {temp.Mileage}");
+                if (temp.Price < 0) throw new Exception($"Price cannot be negative: {temp.Price}");
+                return temp;
+            }
+            catch (Exception ex)
+            {
+                Console.Error.WriteLine($"Error parsing CSV Car string: {ex.Message}");
+                return null;
+            }
         }
 
         /// <summary>