incompatible types: MainMenu cannot be converted to java.awt.event.ActionListener

[babs115]

Can someone please help? Why am I getting this error massage from code[incompatible types: MainMenu cannot be converted to java.awt.event. ActionListener]

Here is the CODE

import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;

public class MainMenu extends JFrame //implements ActionListener
{
    private DefaultTableModel model;
    private JTable table;
    private JScrollPane scroll;
    private JPanel panel;
    private JPanel mainMenuCard;
    private JLabel titleLbl;
    private JButton manageCustomerBtn,manageSaleBtn,manageSaleBookBtn,makeOrderBtn,viewCartBtn,exitBtn;

    
    public MainMenu()
    {
        super("MainMenu");
        setSize(500,400);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        createGUI();
        setVisible(true);
        
        titleLbl=new JLabel("MAIN MENU");
        manageCustomerBtn=new JButton("Manage Customer");
        manageSaleBtn=new JButton("Manage Sale");
        manageSaleBookBtn=new JButton("Manage Sale Book");
        makeOrderBtn=new JButton("Make Order");
        viewCartBtn=new JButton("View Cart");
        exitBtn=new JButton("Exit");
        
        manageCustomerBtn.addActionListener(this);
        manageSaleBtn.addActionListener(this);
        manageSaleBookBtn.addActionListener(this);
        makeOrderBtn.addActionListener(this);
        viewCartBtn.addActionListener(this);
        exitBtn.addActionListener(this);
        
        c.gridwidth=1;
        c.gridheight=1;
        c.weightx=0;
        c.weighty=0;
        c.fill=GridBagConstraints.HORIZONTAL;
        
        addComponent(titleLbl,0,0,0,0,0,0);
        addComponent(manageCustomerBtn,0,1,0,0,0,0);
        addComponent(manageSaleBtn,0,2,0,0,0,0);
        addComponent(manageSaleBookBtn,0,3,0,0,0,0);
        addComponent(makeOrderBtn,0,4,0,0,0,0);
        addComponent(viewCartBtn,0,5,0,0,0,0);
        addComponent(exitBtn,0,6,0,0,0,0);
        
    }
    
    public void createGUI()
    {
        model=new DefaultTableModel();
        
        int rows = 5,cols = 5;
        model=new DefaultTableModel(rows,cols);
        
       // Object[] colNames={"Customer Id", "Customer Name","Customer Phone", "Customer Email"};
       // model = new DefaultTableModel(null,colNames);
        
          Object[][] data={};//{1,"aaa","2015-10-08"},{2,"bbb","2015-10-08"}};
          Object[] colNames={};//"john","james","joseph"};
        model = new DefaultTableModel(data,colNames)
        {
            public boolean isCellEditable(int row,int col)
            {
                return false;
            }
        };
        
        table=new JTable(model)
        {
            boolean[] cellEditables={false,true,true};
            public boolean isCellEditable(int row,int col)
            {
                return cellEditables[col];
            }            
        };
        
        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        
        scroll=new JScrollPane(table);
        scroll.setPreferredSize(new Dimension(350,250));
        panel=new JPanel();
        panel.add(scroll);
        add(panel);
    }
    
    public static void main(String[] args)
    {
        new MainMenu();
    }
}

a pic of the problem is attached.
Thanks in advance.

[chaarmann]

Your main menu must implement an interface (and its methods), else it cannot be used as an action listener.

Just remove your comments in line 6 (see below) and use auto-complete to create the missing methods.

public class MainMenu extends JFrame implements ActionListener

[babs115]

sorry, please how I use auto-complete to create the missing method? This is new to me. Thanks in advance.

[chaarmann]

In Eclipse, the word "MainMenu" would be underlined. You just right-click (not left-click) on it and an option pops up with "create missing methods". Then you can find the new methods at the end of your program.