ch3-Properties

Chapter_3     ch3-Arguments                                                           ch3-LongNames 

Contents:

ShowProperties.cs

Note: This is Java's System.getProperties() equivalent in C#. See ShowProperties.java on Thinking_in_Java_site, section Properties.

ShowProperties.cs

public class ShowProperties

{

  public static void Main()

  {

    System.Reflection.PropertyInfo[] myPropertyInfo;

    // Get the properties of 'System.Environment' class object:

    myPropertyInfo = System.Type.GetType("System.Environment").GetProperties();

    System.Console.WriteLine("Properties of System.Environment are:");

    for (int i = 0; i < myPropertyInfo.Length; i++)

    {

      System.Console.WriteLine(myPropertyInfo[i].ToString());

    }

    System.Console.WriteLine();

    System.Console.WriteLine("CommandLine: {0}",

                             System.Environment.CommandLine);

    System.Console.WriteLine("CurrentDirectory: {0}",

                             System.Environment.CurrentDirectory);

    System.Console.WriteLine("ExitCode: {0}", System.Environment.ExitCode);

    System.Console.WriteLine("HasShutdownStarted: {0}",

                             System.Environment.HasShutdownStarted);

    System.Console.WriteLine("MachineName: {0}",

                             System.Environment.MachineName);

    System.Console.WriteLine("OSVersion: {0}",

                             System.Environment.OSVersion.ToString());

    System.Console.WriteLine("SystemDirectory: {0}",

                             System.Environment.SystemDirectory);

    System.Console.WriteLine("TickCount: {0}",System.Environment.TickCount);

    System.Console.WriteLine("UserDomainName: {0}", 

                             System.Environment.UserDomainName);

    System.Console.WriteLine("UserName: {0}", System.Environment.UserName);

    System.Console.WriteLine("Version: {0}", System.Environment.Version.ToString());

    System.Console.WriteLine("WorkingSet: {0}", System.Environment.WorkingSet);

    System.Console.WriteLine("SystemPageSize: {0}",

                             System.Environment.SystemPageSize);

    System.Console.WriteLine("Is64BitProcess: {0}",

                             System.Environment.Is64BitProcess);

    System.Console.WriteLine("ProcessorCount: {0}",

                             System.Environment.ProcessorCount);

    System.Console.WriteLine();

    string query = "My system drive is %SystemDrive% and my system root is %SystemRoot%";

    string str = System.Environment.ExpandEnvironmentVariables(query);

    string nl = System.Environment.NewLine;

    System.Console.WriteLine("ExpandEnvironmentVariables: {0}  {1}", nl, str);

    System.Console.WriteLine("GetEnvironmentVariable: {0}  My temporary directory is {1}.",

      nl, System.Environment.GetEnvironmentVariable("TEMP"));

    System.Console.WriteLine("GetEnvironmentVariables: ");

    System.Collections.IDictionary environmentVariables =

      System.Environment.GetEnvironmentVariables();

    foreach (System.Collections.DictionaryEntry de in environmentVariables)

    {

      System.Console.WriteLine("  {0} = {1}", de.Key, de.Value);

    }

    System.Console.WriteLine("GetFolderPath: {0}",

      System.Environment.GetFolderPath(System.Environment.SpecialFolder.System));

    string[] drives = System.Environment.GetLogicalDrives();

    System.Console.WriteLine("GetLogicalDrives: {0}", System.String.Join(", ", drives));

  }

}

/*

mcs ShowProperties.cs

mono ShowProperties.exe

*/

Note:  See the documentation for System.Environment.

Chapter_3     ch3-Arguments                                              Back_to_Top                                              ch3-LongNames