Which of the following statements is false?
A) Some event-listener interfaces are functional interfaces.
B) For such interfaces as mentioned in (a), you can implement event handlers with lambdas.
C) For a simple event handler, a lambda significantly reduces the amount of code you need to write.
D) All of the above are true.

Question

Quizplus · Accepted Answer

All the statements provided are true. Statement A is correct because some event-listener interfaces in Java, like ActionListener, are indeed functional interfaces, having only one abstract method. Statement B is true because for functional interfaces, you can use lambda expressions to implement their abstract method, which applies to event handlers as well. Statement C is also true because using a lambda expression for a simple event handler does significantly reduce the amount of code compared to using an anonymous class or implementing the interface in a separate class.

Which of the Following Statements Is False