Which of the following code correctly registers a handler with a button btok? a. btok. setonaction(e -> system. out. println("handle the event")); b. btok. setonaction((e) -> system. out. println("handle the event"); ); c. btok. setonaction((actionevent e) -> system. out. println("handle the event")); d. btok. setonaction(e -> {system. out. println("handle the event"); });

The correct answer is C:

btOK.setOnAction((ActionEvent e) -> System.out.println("Handle the event"));

Explanation:

The button produces an action once clicked. The setOnAction method indicates what will happen when the button is clicked. Action Event is a type of event that gets processed by EventHandler, which provides the action to be performed by clicking the button (printing out "Handle the event").

answer///copyrights protects;

b and c ( ip address and port number)