refactoring: Moved enrollProfInCourse function to Administration

src/main/java/org/example/Administration.java

@@ -407,6 +407,31 @@ public class Administration {
 
     }
 
+    public void enrollProfInCourse(){
+
+        System.out.println("Please enter Professor ID");
+        String profID = scanner.next();
+        while(this.findProfessorById(profID) == null){
+            System.out.println("This Professor does not exist");
+            System.out.println("Please enter a new Professor ID");
+            profID = scanner.next();
+        }
+        System.out.println("Please enter Course ID");
+        String courseID = scanner.next();
+        while(this.findCourseByID(courseID) == null){
+            System.out.println("This Course does not exist");
+            System.out.println("Please enter a new Course ID");
+            courseID = scanner.next();
+        }
+        Professor prof = this.findProfessorById(profID);
+        Course course = this.findCourseByID(courseID);
+        List<Course> courseList = prof.getCoursesTaught();
+        courseList.add(course);
+        prof.setCoursesTaught(courseList);
+        System.out.println("Professor enrolled successfully");
+
+    }
+
 }
 
 

src/main/java/org/example/Main.java

@@ -46,27 +46,7 @@ public class Main {
                     break;
                 case 3:
                     // Enroll Prof to Course
-
-                    System.out.println("Please enter Professor ID");
-                    String profID = scanner.next();
-                    while(administration.findProfessorById(profID) == null){
-                        System.out.println("This Professor does not exist");
-                        System.out.println("Please enter a new Professor ID");
-                        profID = scanner.next();
-                    }
-                    System.out.println("Please enter Course ID");
-                    String courseID = scanner.next();
-                    while(administration.findCourseByID(courseID) == null){
-                        System.out.println("This Course does not exist");
-                        System.out.println("Please enter a new Course ID");
-                        courseID = scanner.next();
-                    }
-                    Professor prof = administration.findProfessorById(profID);
-                    Course course = administration.findCourseByID(courseID);
-                    List<Course> courseList = prof.getCoursesTaught();
-                    courseList.add(course);
-                    prof.setCoursesTaught(courseList);
-
+                    administration.enrollProfInCourse();
                     break;
                 case 4:
                     // Drop Prof from Course