What Is Wrong with the Following Code

question 54

Multiple Choice

What is wrong with the following code?
class ExitListener implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
System.exit(0) ;
}
}
ActionListener exitListener = new ExitListener() ;
JMenu exitMenu = new JMenu("Exit") ;
exitMenu.addActionListener(exitListener) ;
JMenuBar menuBar = new JMenuBar() ;
menuBar.add(exitMenu) ;

• A)The ExitListener class is not public
• B)You cannot attach a listener to a menu, only to a menu item
• C)You cannot add a menu to the menu bar, only a menu item
• D)You need to use a menu listener, not an action listener

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Definitions:

Hypothetical Syllogism

A form of logical argument where two conditional statements lead to a conclusion, if P then Q; if Q then R; therefore, if P then R.

Imported Wine

Wine brought into a country from foreign vineyards or producers, often subject to regulations and duties.

Domestic Wine

Wine that is produced within the same country the consumer is in, as opposed to imported wine.

Standard Form

A way of structuring arguments or expressions according to fixed rules, often to clarify logical relations.