public static void Main()
{
Console.WriteLine(File.GetFileExtension("example"));
Console.WriteLine(File.GetFileExtension("example.pdf"));
Console.WriteLine(File.GetFileExtension("example.new.pdf"));
Console.WriteLine(File.GetFileNameWithoutExtension("example"));
Console.WriteLine(File.GetFileNameWithoutExtension("example.pdf"));
Console.WriteLine(File.GetFileNameWithoutExtension("example.new.pdf"));
Console.WriteLine("Distance in the 2D space = {0:f2}", Dimension.CalcDistance2D(1, -2, 3, 4));
Console.WriteLine("Distance in the 3D space = {0:f2}", Dimension.CalcDistance3D(5, 2, -1, 3, -6, 4));
Dimension.Width = 3;
Dimension.Height = 4;
Dimension.Depth = 5;
Console.WriteLine("Volume = {0:f2}", Dimension.CalcVolume());
Console.WriteLine("Diagonal XYZ = {0:f2}", Dimension.CalcDiagonalXYZ());
Console.WriteLine("Diagonal XY = {0:f2}", Dimension.CalcDiagonalXY());
Console.WriteLine("Diagonal XZ = {0:f2}", Dimension.CalcDiagonalXZ());
Console.WriteLine("Diagonal YZ = {0:f2}", Dimension.CalcDiagonalYZ());
}