fixed java uploader

app.py

@@ -25,7 +25,7 @@ def classify_code(input_text, input_file):
     """Classifies Java code readability based on user input."""
     # Load Java file if provided
     if input_file is not None:
-        code = input_file.read().decode("utf-8")  # Read Java file as text
+        code = input_file.decode("utf-8")  # Read Java file as text
     else:
         code = input_text  # Use text input