Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #29954

Re: How does it know?

Show all headers | View raw

12.09.2014, 19:36, Steven Simpson kirjoitti:
> On 12/09/14 16:36, Knute Johnson wrote:
>> On 9/12/2014 08:11, Knute Johnson wrote:
>>> The second question is, what type is test.main()?  I want to be able to
>>> put it into a Map.
>>
>> Now that I think about it, I don't think that is possible.
> 
> import java.util.*;
> 
> public class TestApplication {
>     public interface Application {
>         void main(String... args) throws Exception;
>     }
> 
>     public static void main(String[] args) {
>         Map<String, Application> map = new HashMap<>();
>         map.put("self", TestApplication::main);
>     }
> }
> 
> 
> 

That does not compute. Or is this some Java 8 new feature? I thought
methods are not "first class citizens" in Java...

I would say

map.put("something", new Application {
   void main(String... args) throws Exception
   {
      throw new Exception("WTF?");
   }
});


-- 

Avert misunderstanding by calm, poise, and balance.

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-12 08:11 -0700
  Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-12 08:36 -0700
    Re: How does it know? Steven Simpson <ss@domain.invalid> - 2014-09-12 17:36 +0100
      Re: How does it know? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-12 21:40 +0300
        Re: How does it know? Joerg Meier <joergmmeier@arcor.de> - 2014-09-13 11:57 +0200
  Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-12 16:18 -0700
    Re: How does it know? Mike Amling <mamling@chaff.us> - 2014-09-14 08:52 -0500
      Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-14 07:48 -0700
  Re: How does it know? Roedy Green <see_website@mindprod.com.invalid> - 2014-09-12 18:11 -0700
    Re: How does it know? Joerg Meier <joergmmeier@arcor.de> - 2014-09-13 11:59 +0200
      Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-14 07:51 -0700
        Re: How does it know? Arne Vajhøj <arne@vajhoej.dk> - 2014-09-14 22:24 -0400
    Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-14 07:50 -0700
      Re: How does it know? Arne Vajhøj <arne@vajhoej.dk> - 2014-09-14 22:26 -0400
        Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-17 14:52 -0700
  Re: How does it know? Roedy Green <see_website@mindprod.com.invalid> - 2014-09-12 18:13 -0700
  Re: How does it know? Mike Amling <mamling@chaff.us> - 2014-09-14 08:29 -0500
    Re: How does it know? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2014-09-14 07:53 -0700
      Re: How does it know? Roedy Green <see_website@mindprod.com.invalid> - 2014-09-17 00:40 -0700
        Re: How does it know? Joerg Meier <joergmmeier@arcor.de> - 2014-09-18 00:10 +0200

csiph-web