Ej2 - Parte 6

//final del constructor

            btnNuevo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                nota1.setText("");
                nota2.setText("");
                nota3.setText("");
                txtPromedio.setText("");
                txtCondicion.setText("");
                comboTP.setSelectedIndex(0);
            }
        });

        JButton btnSalir = new JButton("Salir");
        btnSalir.setFont(new Font("Tahoma", Font.PLAIN, 12));
        btnSalir.setBounds(345, 213, 120, 30);
        getContentPane().add(btnSalir);

        btnSalir.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });