Option Explicit On 
Option Strict On
Imports System
Imports System.IO
Class DirectoryLister
    Public Shared Sub Main(ByVal args As String())
        Dim path As String = Environment.CurrentDirectory
        If (args.Length > 0) Then
            If File.Exists(args(0)) Then
                path = args(0)
            Else
                Console.WriteLine("{0} not found; using current directory:", _
                    args(0))
            End If
        End If
        Dim dir As New DirectoryInfo(path)
        Dim f As FileInfo
        For Each f In dir.GetFiles("*.exe")
            Dim name As [String] = f. Name
            Dim size As Long = f.Length
            Dim creationTime As DateTime = f.CreationTime
            Console.WriteLine("{0,-12:N0} {1,-20:g} {2}", size, creationTime, name)
        Next f
    End Sub
End Class

using System;
using System.IO;

class DirectoryLister
{
    public static void Main(String[] args)
    {
        string path = Environment.CurrentDirectory;
        if (args.Length > 0)
        {
            if (Directory.Exists(args[0]))
            {
                path = args[0];
            }
            else
            {
                Console.WriteLine("{0} not found; using current  directory:",
                    args[0]);
            }
        }
        DirectoryInfo dir = new DirectoryInfo(path);
        foreach (FileInfo f in dir.GetFiles("*.exe")) 
        {
            String name = f. Name;
            long size = f.Length;
            DateTime creationTime = f.CreationTime;
            Console.WriteLine("{0,-12:N0} {1,-20:g} {2}", size, 
                creationTime, name);
        }
    }