pulic class club

{

private int maxCount=20;

private List<Registrant> registrant=new List<Registrant>();

public AddSwimmer(Registrant pRegistrant)

{

boolean isFull=IsFull();

if (isFull){

//提示满没

}else

{

registrant.add(pRegistrant);

}

}

private boolean IsFull()

{

boolean isFull=false;

if(registrant.count>=maxCount)

{

isFull=true;

}

return isFull;

}

}