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

public class tela1 extends JFrame implements ActionListener {
		JButton bt_Salvar = new JButton ("SALVAR");
        JButton bt_Sair = new JButton ("SAIR");
        JButton bt_Limpar = new JButton ("LIMPAR");
		JLabel lbl_Nome = new JLabel ("NOME");
		JLabel lbl_Endereço = new JLabel ("                  ");
		JLabel lbl_CPF = new JLabel ("                  ");
		JPanel Painel1, Painel2, Painel3, Painel4;
		JTextField tf_Nome, tf_CPF, tf_Endereco;
		
		public tela1() {
		  getContentPane().setLayout(new GridLayout(4, 1));
          getContentPane().add(Painel1 = new JPanel());
          Painel1.add( lbl_Nome);
          Painel1.add(tf_Nome = new JTextField(20));
          getContentPane().add(Painel2 = new JPanel());
          Painel2.add(lbl_CPF);    
          Painel2.add(tf_CPF = new JTextField(15));
          
          
          getContentPane().add(Painel3 = new JPanel());
          getContentPane().add(Painel4 = new JPanel());
          Painel4.add(bt_Salvar);
          Painel4.add(bt_Limpar);
          Painel4.add(bt_Sair);
          pack();
          setVisible(true);
          bt_Sair.addActionListener(this);
          bt_Limpar.addActionListener(this);
          bt_Salvar.addActionListener(this);
		}
		public static void main (String args [])
		{
	    	new tela1();
	    }
		public void actionPerformed (ActionEvent e){
	      	if(e.getSource()==bt_Salvar){
	      		JOptionPane.showMessageDialog(null, "Cadastro Salvo!");
	      	}
	      	if(e.getSource()==bt_Limpar){
	        	lbl_Nome.setText("                 ");
	        	lbl_Endereço.setText("                 ");
	        	lbl_CPF.setText("                 ");
	      	}
	      	if(e.getSource()==bt_Sair){
	      		System.exit(0);
      		}
	    }
}