Question

What does this statement means in C#?

        using (object obj = new object())
        {
            //random stuff
        }

Answer 1

It means that obj implements IDisposible and will be properly disposed of after the using block. It’s functionally the same as:

{
  //Assumes SomeObject implements IDisposable
  SomeObject obj = new SomeObject();
  try
  {
    // Do more stuff here.       
  }
  finally
  { 
    if (obj != null)
    {
      ((IDisposable)obj).Dispose();
    }
  }
}