Adding findCourseByID method in Administration class

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

@@ -40,6 +40,15 @@ public class Administration {
         return false;
     }
 
+    public Course findCourseByID(String courseID){
+        for(Course course : courses){
+            if(course.getCourseCode().equals(courseID)){
+                return course;
+            }
+        }
+        return null;
+    }
+
     /**
      *
      * @param professorID the id of the professor you want to be deleted from the system
@@ -86,8 +95,6 @@ public class Administration {
     }
 
 
-
-
     /**
      *
      * @param adminID the id of the admin you want to be deleted from the system