public class RedheadDuck extends java.lang.Object implements Quackable
RedheadDuck()
void
quack()
java.lang.String
toString()
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
public RedheadDuck()
public void quack()
quack
Quackable
public java.lang.String toString()
toString
java.lang.Object