refactoring: improving the readability of the input

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

@@ -507,9 +507,9 @@ public class Administration {
     }
 
     public void enrollStudentInCourseInteractive() {
-        System.out.println("Enter Student ID:");
+        System.out.print("Enter Student ID:");
         String studentId = scanner.nextLine(); // Use nextLine for consistent input handling
-        System.out.println("Enter Course ID:");
+        System.out.print("Enter Course ID:");
         String courseId = scanner.nextLine();
 
         boolean enrolled = enrollStudentInCourse(studentId, courseId);