“Tworzenie menu w Javie” Kod odpowiedzi

Tworzenie menu w Javie

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Menu implements ActionListener
{
    static JLabel text;
    //Driver function
    public static void main(String args[])
    {
	//Create a frame
	JFrame frame = new JFrame("Menu");
	frame.setSize(500,500);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	frame.setLayout(new FlowLayout());
	//Create an object
	Menu obj = new Menu();
	//Create a Menu
	JMenu menu = new JMenu("Select Here");
	//Create Menu Items
	JMenuItem item[] = new JMenuItem[5];
	for(int i=0;i<5;i++)
	{
	    item[i]=new JMenuItem("Item "+(i+1));
	    item[i].addActionListener(obj);
	    menu.add(item[i]);
	}
	//Create a menu bar
	JMenuBar mb=new JMenuBar();
	mb.add(menu);
	frame.setJMenuBar(mb);
	//Create the label
	text = new JLabel();
	frame.add(text);
	//Display the frame
	frame.setVisible(true);
    }
    //Function to display the menu item selected
    public void actionPerformed(ActionEvent e)
    {
	text.setText("Menu Item Selected : "+e.getActionCommand());
    }
}