/**
 * Exemplo JFrame Swing
 */
import java.awt.*;
import javax.swing.*; 
import java.awt.event.*;
import javax.swing.event.*; 

public class ExemploMenu extends JFrame implements ActionListener
{

		
		JButton bt_Sair 		= new JButton ("SAIR DO SISTEMA");
		JPanel Painel_1, Painel_2, Painel_3;
		JMenuBar Barra_De_Menu = new JMenuBar();
		JMenu    Menu_Arquivo = new JMenu ("ARQUIVO");
		JMenu    Menu_Opcoes = new JMenu  ("OPÇÕES");
		JMenu    Menu_Ajuda = new JMenu  ("AJUDA");
		JMenuItem	MenuItem_Novo 	=	new JMenuItem("NOVA JANELA");		 		 
		JMenuItem	MenuItem_Fechar	=	new JMenuItem("FECHAR JANELA");
		public	ExemploMenu()
		{
				setJMenuBar(Barra_De_Menu); 
				Barra_De_Menu.add(Menu_Arquivo);
				Barra_De_Menu.add(Menu_Opcoes);
				Barra_De_Menu.add(Menu_Ajuda);
				
					
				getContentPane().setLayout(new GridLayout(4, 1) );
 				getContentPane().add(Painel_1 = new JPanel (new FlowLayout(FlowLayout.CENTER)));
 				Painel_1.add(new JLabel ("OLÁ PESSOAL DO 3º INF"));
				getContentPane().add(Painel_2 = new JPanel (new FlowLayout(FlowLayout.CENTER)));
     			getContentPane().add(Painel_3 = new JPanel (new FlowLayout(FlowLayout.CENTER)));
				
				Painel_3.add(bt_Sair = new JButton ("SAIR DO SISTEMA"));
				bt_Sair.addActionListener(this);
				//setSize(300, 500);
				pack();
				setVisible(true);
				
			
		} 			
		public void actionPerformed(ActionEvent e)
		{
				if(e.getSource()==bt_Sair)
				{
						System.exit(0);
				}
			
		}
	
    	public static void main (String args [])
    	{
    			new ExemploMenu(); 
    	}		    
}