diff --git a/supporting_scripts/course-scripts/quick-course-setup/randomize_results_after.py b/supporting_scripts/course-scripts/quick-course-setup/randomize_results_after.py
index 2ce8c99390fa..a84ff210eec9 100644
--- a/supporting_scripts/course-scripts/quick-course-setup/randomize_results_after.py
+++ b/supporting_scripts/course-scripts/quick-course-setup/randomize_results_after.py
@@ -2,21 +2,21 @@
 import shutil
 from logging_config import logging
 
-test_files_folder = "../../../src/main/resources/templates/java/test/testFiles"
-default_folder = "./testFiles-template/default"
-random_test_case_dest = os.path.join(test_files_folder, "RandomizedTestCases.java")
+test_files_folder: str = "../../../src/main/resources/templates/java/test/testFiles"
+default_folder: str = "./testFiles-template/default"
+random_test_case_dest: str = os.path.join(test_files_folder, "RandomizedTestCases.java")
 
-def delete_random_test_case():
+def delete_random_test_case() -> None:
     if os.path.exists(random_test_case_dest):
         os.remove(random_test_case_dest)
         logging.info(f"Deleted file: {random_test_case_dest}")
     else:
         logging.info(f"RandomizedTestCases.java file not found at {random_test_case_dest}")
 
-def copy_default_folders():
+def copy_default_folders() -> None:
     for folder_name in os.listdir(default_folder):
-        src_folder_path = os.path.join(default_folder, folder_name)
-        dest_folder_path = os.path.join(test_files_folder, folder_name)
+        src_folder_path: str = os.path.join(default_folder, folder_name)
+        dest_folder_path: str = os.path.join(test_files_folder, folder_name)
         if os.path.isdir(src_folder_path):
             shutil.copytree(src_folder_path, dest_folder_path)
             logging.info(f"Copied folder {src_folder_path} to {dest_folder_path}")
diff --git a/supporting_scripts/course-scripts/quick-course-setup/randomize_results_before.py b/supporting_scripts/course-scripts/quick-course-setup/randomize_results_before.py
index cec77f979fae..c969a1ab9059 100644
--- a/supporting_scripts/course-scripts/quick-course-setup/randomize_results_before.py
+++ b/supporting_scripts/course-scripts/quick-course-setup/randomize_results_before.py
@@ -2,21 +2,21 @@
 import shutil
 from logging_config import logging
 
-test_files_folder = "../../../src/main/resources/templates/java/test/testFiles"
-random_test_case_file = "./testFiles-template/randomized/RandomizedTestCases.java"
-random_test_case_dest = os.path.join(test_files_folder, "RandomizedTestCases.java")
+test_files_folder: str = "../../../src/main/resources/templates/java/test/testFiles"
+random_test_case_file: str = "./testFiles-template/randomized/RandomizedTestCases.java"
+random_test_case_dest: str = os.path.join(test_files_folder, "RandomizedTestCases.java")
 
-def delete_existing_folders():
-    folders_to_delete = ["behavior", "structural"]
+def delete_existing_folders() -> None:
+    folders_to_delete: list[str] = ["behavior", "structural"]
     for folder in folders_to_delete:
-        folder_path = os.path.join(test_files_folder, folder)
+        folder_path: str = os.path.join(test_files_folder, folder)
         if os.path.exists(folder_path) and os.path.isdir(folder_path):
             shutil.rmtree(folder_path)
             logging.info(f"Deleted folder: {folder_path}")
         else:
             logging.info(f"Folder not found: {folder_path}")
 
-def copy_random_test_case():
+def copy_random_test_case() -> None:
     if os.path.exists(random_test_case_file):
         shutil.copy(random_test_case_file, random_test_case_dest)
         logging.info(f"Copied {random_test_case_file} to {random_test_case_dest}")