private and course

buisnesslogic/src/main/java/com/plannaplan/services/AssignmentService.java

@@ -9,7 +9,7 @@ import org.springframework.stereotype.Service;
 @Service
 public class AssignmentService implements EventCreator {
     @Autowired
-    AssignmentRepository repo;
+    private AssignmentRepository repo;
 
     @Override
     public void update() {

buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java

@@ -0,0 +1,12 @@
+package com.plannaplan.services;
+
+import com.plannaplan.repositories.CourseRepository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class CourseService {
+    @Autowired
+    private CourseRepository repo;
+}

buisnesslogic/src/main/java/com/plannaplan/services/LecturerService.java

@@ -8,5 +8,5 @@ import org.springframework.stereotype.Service;
 @Service
 public class LecturerService {
     @Autowired
-    LecturerRepository repo;
+    private LecturerRepository repo;
 }

buisnesslogic/src/main/java/com/plannaplan/services/UserService.java

@@ -9,7 +9,7 @@ import org.springframework.stereotype.Service;
 @Service
 public class UserService implements EventCreator {
     @Autowired
-    UserRepository repo;
+    private UserRepository repo;
 
     @Override
     public void update() {