Re: How does it know?

From:
Joerg Meier <joergmmeier@arcor.de>
Newsgroups:
comp.lang.java.programmer
Date:
Sat, 13 Sep 2014 11:57:30 +0200
Message-ID:
<1w9tll41jetk9$.1kjqmgkts927n$.dlg@40tude.net>
On Fri, 12 Sep 2014 21:40:38 +0300, Donkey Hottie wrote:

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...


Yes, that is part of the new Java 8 changes surrounding the Lambdas.

Liebe Gruesse,
        Joerg

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