Main.java

// Create a new sailboat named Wind Passer and Registration(Primary Key) NCC1701
Sailboat sailboat = new Sailboat();
sailboat.setRegistrationCode("NCC1701");
sailboat.setName("Wind Passer");

// Create a new Skipper named Martha McFly
Skipper sailboatSkipper = new Skipper();
sailboatSkipper.setFirstName("Martha");
sailboatSkipper.setLastName("McFly");

// Define the relationship
sailboat.setSkipper(sailboatSkipper);