PowerShell v5 class method - problems

Question

Playing with a new class feature in PowerShell v5, and I'm trying to get around my head if we can put methods in classes.

I tried below and played a little with it, but had no luck.

class Server {

    [string]$computerName = "192.168.0.200"
    [bool]$ping = (Test-Connection -ComputerName $computerName).count

}

$1 = [server]::new()
$1.computerName = "blah"

I tried to manually enter the computer name by setting the property, but then suggested that you would need it when creating the object

$1 = [server]::new($computerName = "192.168.0.200")

Exceptions I get

[ERROR] Exception calling ".ctor" with "0" argument(s): "Cannot validate argument on parameter 'ComputerName'. The argument is null or empty. Provide an argument that is not null or empty, and then try the 
[ERROR] command again."
[ERROR] At D:\Google Drive\Projects\VSPowerShell\DiscoveryFramework\DiscoveryFramework\DiscoveryFramework\class.ps1:12 char:1
[ERROR] + $1 = [server]::new()
[ERROR] + ~~~~~~~~~~~~~~~~~~~~
[ERROR]     + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
[ERROR]     + FullyQualifiedErrorId : ParameterBindingValidationException
[ERROR]  
[DBG]: PS C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE> 
[DBG]: PS C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE> $1
Server
[DBG]: PS C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE> $1.gettype()
Server

The full $ error exception link is at http://pastebin.com/WtxfYzb5

---

Got some more use of $ this.prop, but you cannot initiate a constructor with your own parameters.

PS path:\> class Server {

    [string]$computerName = "192.168.0.200"
    [bool]$ping = (Test-Connection -ComputerName $this.computerName).count

}

PS path:\> 
PS path:\> $var = [server]::new()

PS path:\> $var

computerName  ping
------------  ----
192.168.0.200 True

Answer 1

, ( ), , , , , .

IP-, ( $ping.)

, , , .

class Server {
    #region class properties
    [string]$computerName = "192.168.0.200"
    [bool]$ping = (Test-Connection -ComputerName $this.computerName).count
    #endregion

    #region class constructors
    Server() {}

    Server([string]$computerName) {
        $this.computerName = $computerName
    }
    #endregion

    #region class methods
    #endregion
}

, :

[1] PS G:\> $1 = [Server]::new()
[2] PS G:\> $1

computerName  ping
------------  ----
192.168.0.200 True



[3] PS G:\> $1.computerName = 'blah'
[4] PS G:\> $1

computerName  ping
------------  ----
blah          True

IP- ( ) ( , .)

[5] PS G:\> $2 = [Server]::new("192.168.0.100")
[6] PS G:\> $2

computerName  ping
------------  ----
192.168.0.100 True

, . , , , , , .

, , .

Answer 2

Class 5, , , , "Instantiate" Server, , :

class Server {

    [string]$computerName
    [bool]$ping

    Server([String]$Computer) {
        $computerName = $Computer
        $ping = (Test-Connection -ComputerName $Computer).count
    }

}

$1 = [server]::new("MYCOMPUTER")
$1