Java 8 Lambda example

java8lambda

public FunctionalHelloButtonApp() {
button.addActionListener(
#{ ActionEvent e -> System.out.println("Hello There: event received: "+e) }
);
}

scalastyledlambda

package functions;
public interface Function2<A1, A2, R> {
R apply(A1 a1, A2 a2);
}