"Function" with no arguments and no return type (void) in Java> = 8

Question

I can determine it myself, for example. in this way:

@FunctionalInterface interface EmptyEmptyFunction { void apply(); }

and then use it like this:

  EmptyEmptyFunction m = () -> {System.out.println("Hello World - Java 8!");}; m.apply();

My question is: is there a built-in type in the JDK like
EmptyEmptyFunction , or should I define EmptyEmptyFunction
myself (as I already did)?

There are many functional interfaces.

but I can’t find one that has exactly
same "signature" as my EmptyEmptyFunction .

+7

java java-8

peter.petrov Jan 15 '15 at 21:27

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