public class Main { public static void main(String[] args) { Korean k = new Korean("공유"); System.out.println(k.getName()); k.setNationality("한국"); System.out.println(k.getNationality()); Korean k2 = new Korean("공유", "한국"); System.out.println(k2.getName()); System.out.println(k2.getNationality()); } } public class Human { private String nationality; Human(String nationality) { this.nationality=na..