FAbio formulario 2

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

public class Form extends JFrame
{
        JLabel lb_titulo;
        JButton bt_cadastro;
        JTextField tf_nome;
        JButton bt_sair;

public  Form()
{
                setTitle("ProRat");
                setSize(600, 400);
                setLocation(70, 70);
                setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                setResizable(false);
                getContentPane().setBackground(new Color(10, 140, 120));



                lb_titulo = new JLabel("Aula POO");
                bt_cadastro = new JButton("Cadastro");
                tf_nome = new JTextField("");
                bt_sair = new JButton("dada");

                getContentPane().add(lb_titulo);
                getContentPane().add(bt_cadastro);
                getContentPane().add(tf_nome);

                getContentPane().add("North",lb_titulo);
                getContentPane().add("South",bt_cadastro);
                getContentPane().add("North",tf_nome);
                getContentPane().add("South",bt_sair);


        }

        public static void main(String[] args) {
                Form obj_form = new Form();

                obj_form.show();



        }

}