public class Platypus extends Mammal
{
    public Platypus()
    {
	setName("Playtpus");
	setSound("grrr");  
    }
    
    @Override
    public boolean livesInWater()
    {
	return true;
    }
    
    @Override
    public boolean laysEggs()
    {
	return true;
    }

}