[Java 소스] 다형성 예 public class Musician { public void play(){ System.out.println("랄라라"); } } public class Pianist extends Musician{ @Override public void play(){ System.out.println("딩동댕"); } } public class Drummer extends Musician{ @Override public void play(){ System.out.println("두두둥"); } } public class Program { public static void main(String[] args){ Musician musician = new Musician(); musician..