Setup sdkman on windows 10

Run powershell as administrator:
  -posh-gvm installation:
    Execute (new-object Net.WebClient).DownloadString('https://raw.githubusercontent.com/flofreud/posh-gvm/master/GetPoshGvm.ps1') | iex
    Execute Import-Module posh-gvm
      // if you have problems with execution policy (https://msdn.microsoft.com/powershell/reference/5.1/Microsoft.PowerShell.Core/about/about_Execution_Policies)
      // Set-ExecutionPolicy RemoteSigned -Scope CurrentUser
      // later return to old value
    Execute gvm help to get started!
    
  -sdkman installation:
    curl -s "get.sdkman.io"
    enter again get.sdkman.io
    
  - To install for example java, instead "sdk install java" execute "gvm install java"