public string this[int idx]
{
get
{
if (idx >= Names.Length || idx < 0)
{
throw new
IndexOutOfRangeException();
}
switch (idx)
{
case 0:
return(OA.ToString() + ", " + OB.ToString() + ", " + OC.ToString());
case 1:
return(Sum_of_edge_lengths().ToString());
case 2:
return(Volume().ToString());
case 3:
return(SurfaceArea().ToString());
default:
return(null);
}
}
}
public override string ToString()
{
return(OA.ToString() + '|' + OB.ToString() + '|' + OC.ToString());
}
