Complete RegistrationSystem class (addCourseToSystem, findCourseByCode and showAllCourses methods)

src/CourseRegistrationStarter/RegistrationSystem.java

@@ -10,15 +10,25 @@ public class RegistrationSystem {
 
     public void addCourseToSystem(Course c) {
         // TODO: Add the course to the system
+        courses.add(c);
     }
 
     public Course findCourseByCode(String code) {
         // TODO: Search for a course by course code
         // Return the matching course if found, otherwise return null
+        for(Course thisCourse : courses){
+            if(thisCourse.getCourseCode() == code){
+                return thisCourse;
+            }
+        }
         return null;
     }
 
     public void showAllCourses() {
         // TODO: Print all courses in the system
+        System.out.println("Course Name | Course Code | Capacity");
+        for(Course thisCourse : courses){
+            System.out.printf("%s | %s | %d\n", thisCourse.getCourseName(), thisCourse.getCourseCode(), thisCourse.getCapacity());
+        }
     }
 }