Question

If I have a method like the following can I omit the catch block here to achieve the same results?:

private ClassInstance GetMeANumber()
{
     Resource a = null;

      try
      {
          Resource a = new Resource();
          return a.GetClassInstance();
      }
      catch
      {
          throw;
      }
      finally
      {
          if(a != null)
              a.Dispose();
      }
}

Answer 1

Yes, that would be exactly the same.

However, a more common pattern is to implement IDisposable on Resource. Then you can use using to acheive the same thing more concisely.

using (Resource a = new Resource()) {
    return a.GetClassInstance();
}