public class InstructorManager { public void addCourse(Instructor instructor) { System.out.println("\n" + instructor.getCourse() + " are added as course by " + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + "."); } public void removeCourse(Instructor instructor) { System.out.println("\nCourse " + instructor.getCourse() + " are removed from system by " + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + "."); } public void updateCourse(Instructor instructor) { System.out.println("\nCourse " + instructor.getCourse() + " are successfully updated by " + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + "."); } public void addHomework(Instructor instructor) { System.out.println("\n" + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + " added a homework to system."); } public void updateHomework(Instructor instructor) { System.out.println("\n" + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + " updated a homework."); } public void removeHomework(Instructor instructor) { System.out.println("\n" + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + " removed a homework from system."); } public void getAll(Instructor[] instructors) { for (Instructor instructor : instructors) { System.out.println("\nInstructor ID: " + instructor.getId() + "\nFirst & Last Name: " + instructor.getFirstName() + " " + instructor.getLastName() + "\nCourse: " + instructor.getCourse()); } } public void add(Instructor instructor) { System.out.println("\n" + instructor.getFirstName() + " " + instructor.getLastName() + " is added to system as " + instructor.getUserType() + "."); } public void update(Instructor instructor) { System.out.println("\n" + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + " is successfully updated."); } public void remove(Instructor instructor) { System.out.println("\n" + instructor.getUserType() + " " + instructor.getFirstName() + " " + instructor.getLastName() + " is removed from system."); } public void addMultiple(Instructor[] instructors) { for (Instructor instructor : instructors) { add(instructor); } } public void updateMultiple(Instructor[] instructors) { for (Instructor instructor : instructors) { update(instructor); } } public void removeMultiple(Instructor[] instructors) { for (Instructor instructor : instructors) { remove(instructor); } } }