What is known for certain from this correct code excerpt? ActionListener openListener = new FileOpenListener();
JMenuItem fileOpen = new JMenuItem("Open File");
FileOpen.addActionListener(openListener);
A) fileOpen will open a file dialog when clicked
B) The fileOpen menu item will be visible
C) The FileOpenListener class implements the ActionListener interface
D) The openListener object will only listen to the fileOpen object

Question

Quizplus · Accepted Answer

The code shows that openListener is an instance of FileOpenListener, which is assigned to a variable of type ActionListener, indicating that FileOpenListener implements the ActionListener interface.

What Is Known for Certain from This Correct Code Excerpt