// a null lot
public Lot()
{
coordinates.X = -1;
coordinates.Y = -1;
building = new Building();
zoning = "";
value = -1;
}
// declare and define constructor
public Lot(int x,int y,Building bld,string zone,double val)
{
coordinates.X = x;
coordinates.Y = y;
building = bld;
zoning = zone;
value = val;
}
