/* * dequeue method will remove the top Node from the Queue and return the AIPolygon being * held inside the node being removed * Parameters: None * Return: (AIPolygon) * null if the queue is empty * the AIPolygon being held if the queue is not empty */ public AIPolygon dequeue() { AIPolygonNode temp = front; front = temp.getNextNode(); size--; return(temp.getPolygon()); }
/* * getPolygonAtIndex will find a AIPolygonNode at a certian point inside the Queue * and return the AIPolygon being held inside the node. It will not remove the * Node from the Queue * Parameters: (int)index is the index in the Queue that the caller wants sent back * Return: (AIPolygon) * the AIPolygon at the index in the Queue */ public AIPolygon getPolygonAtIndex(int index) { if (index == 0) { return(front.getPolygon()); } AIPolygonNode temp = front; for (int count = 0; count < index; count++) { temp = temp.getNextNode(); } return(temp.getPolygon()); }