Ej2 - Parte 1

package Desarrollo;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.border.TitledBorder;
import javax.swing.JPanel;
import java.awt.Font;

public class VentanaEjercicio2 extends JFrame{

    private static final long serialVersionUID = 1L;
    private JTextField nota1, nota2, nota3;
    private JComboBox<String> comboTP;
    private JButton btnCalcular;
    private JTextField txtPromedio;
    private JTextField txtCondicion;


    public VentanaEjercicio2() {
        setTitle("Promedio");
        setBounds(500, 250, 501, 412);
        getContentPane().setLayout(null);
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

    JPanel panel = new JPanel();
        panel.setBounds(42, 31, 266, 184);
        panel.setBorder(new TitledBorder(null, "Notas del estudiante", TitledBorder.LEADING, TitledBorder.TOP, null, null));


      JLabel lbl1 = new JLabel("Nota 1:");
        lbl1.setFont(new Font("Tahoma", Font.PLAIN, 12));
        lbl1.setBounds(35, 32, 46, 25);
        panel.add(lbl1);
        panel.setLayout(null);
        nota1 = new JTextField();
        nota1.setBounds(91, 32, 136, 25);
        panel.add(nota1);



}