Implement an interface while calling a method (inline)

Question

In Java, assuming that class A is an interface/abstract class, I can do the following:

callMethod(new A(){

     public void myFunc(){
     System.out.println("test");
     }
});

How can I achieve the same shortcut effect in C# without having to declare a class seperately .

Thanks

In C# you cannot implement an interface with an anonymous class. But in C# there is much less reason to do so. There is no such thing as a `FunctionalInterface`. Instead we have delegates, and we use delegate objects rather than implementations of a `FunctionalInterface`. Instead, the signature of `CallMethod(Action action)` and you would pass in `() => Console.WriteLine("test")`. — Aron, Jun 28 '16 at 01:52
Voting to reopen as this question actually looks like a question on `FunctionalInterface` in JAVA and `Delegate`s in C#. — Aron, Jun 28 '16 at 01:53
Thank you. That looks interesting. I didn't even know this existed as I am learning c# — Snake, Jun 28 '16 at 02:30

score 0 · Accepted Answer · answered Jun 28 '16 at 01:36

0

You can't.

C# does not allow you to implement interfaces on Anonymous Types.

answered Jun 28 '16 at 01:36

Justin Niessner

1 Answers1