Which of the following correctly completes the Java statement shown to add a listener to a button using a lambda expression?
button.addActionListener(_________________________________);
A)(ActionEvent event) = System.out.println("Clicked!")
B)lambda((ActionEvent event) - System.out.println("Clicked!"))
C)(ActionEvent event) - System.out.println("Clicked!")
D)lambda(ActionEvent event, System.out.println("Clicked!"))

Question

Which of the following correctly completes the Java statement shown to add a listener to a button using a lambda expression?
button.addActionListener(_________________________________);
A)(ActionEvent event) => System.out.println("Clicked!")
B)lambda((ActionEvent event) -> System.out.println("Clicked!"))
C)(ActionEvent event) -> System.out.println("Clicked!")
D)lambda(ActionEvent event, System.out.println("Clicked!"))

Quizplus · Accepted Answer

Option A is not a valid lambda expression.
Option B has an unnecessary "lambda" keyword and incorrect syntax, it should be (ActionEvent event) -> System.out.println("Clicked!").
Option D uses incorrect syntax and has an additional parameter which is not required. The correct syntax for a lambda function is (parameter) -> expression.
Option C is a valid lambda expression and completes the statement correctly.

Which of the Following Correctly Completes the Java Statement Shown