assert (!init == primepump) :
assert !((init) && (init && primepump)) :
    public int totalItemsReceived(boolean init, boolean primepump)     {	assert (!init == primepump) :	    "incorrect usage";	int items = 0;	//get the number of items received	if (init) 	    items = initItemsReceived();	else if (primepump) 	    items = primePump * pop;	else	    items = steadyMult * pop;		return items;    }