using System;
using System.IO;
class DisplayExecutableFiles
{
static void Main()
{
string[] files = Directory.GetFiles(".");
foreach (string file in files)
{
string extension = Path.GetExtension(file);
switch (extension)
{
case ".exe":
case ".com":
case ".bat":
case ".cmd":
Console.WriteLine(file);
break;
}
}
}
}