In this tutorials will teach how to create the main menu using java by code with out drag and drop.
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.MenuBar;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.*;
import java.awt.event.*;
public class Main extends Frame implements ActionListener {
    
 public Main()
{
    super("Menu");
    Dimension screensize=Toolkit.getDefaultToolkit().getScreenSize();
    setSize(screensize);
    setBackground(Color.black);
    setLayout(null);
    setResizable(false);
MenuBar mb = new MenuBar();
setMenuBar(mb);
Menu maintenance = new Menu("Maintenance");
mb.add(maintenance);
MenuItem add1 = new MenuItem("Employee");
maintenance.add(add1);
add1.addActionListener(this);
MenuItem edit1 = new MenuItem("Ammendment");
maintenance.add(edit1);
edit1.addActionListener(this);
MenuItem del1 = new MenuItem("Deletion");
maintenance.add(del1);
del1.addActionListener(this);
MenuItem inq1 = new MenuItem("Inquire");
maintenance.add(inq1);
inq1.addActionListener(this);
MenuItem exit = new MenuItem("Exit");
maintenance.add(exit);
exit.addActionListener(this);
}
 @Override
public void actionPerformed(ActionEvent e)
{
    
String s= e.getActionCommand();
if (s.equals("Employee"))
{
    Empl A1= new Empl();
    A1.show();
}
else if (s.equals("Exit"))
{
System.exit(0);
}
}
public static void main(String args[])
{
Main mm = new Main();
mm.show();
}
} 
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