錯誤addActionListener方法來的JMenuitem

Question

required: ActionListener
found: EditMenuFunctions
reason: actual argument EditMenuFunctions cannot be converted to ActionListener by method invocation conversion

.\AFrame.java:56: error: method addActionListener in class AbstractButton cannot be applied to given types;

refMenuBar.time_date.addActionListener(new EditMenuFunctions());

AMenuBar refMenuBar = new AMenuBar(); 
protected final JMenuItem time_date = new JMenuItem("Time/Date"); 
refMenuBar.time_date.addActionListener(new EditMenuFunctions()); 

class EditMenuFunctions是我的類，它包含了actionPerformed()方法。我加入的ActionListener到的JMenuItem在class AFrame我已經在class AMenuBar

Answer 1

你EditMenuFunctions必須實現ActionListener。例如：

public class EditMenuFunctions implements ActionListener { 

    @Override 
    public void actionPerformed(ActionEvent event) { ... } 

} 

Answer 2

創建的JMenuItem

更改類EditMenuFunctions到implment /延長的ActionListener