private void jButton1ActionPerformed( java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jButton1ActionPerformed // TODO add your handling code here: if (t1.getText().equals("") || t2.getText().equals("") || t3.getText().equals("") || t4.getText().equals("")) { err = new Error(); err.setMsg("Faltan datos por ingresar"); err.setVisible(true); } else { // "INSERT INTO Alumnos (cod_alum, grupo) VALUES ('1', '1');" String cad = "VALUES ('" + lblid.getText() + "','" + t1.getText() + "','" + t2.getText() + "','" + t3.getText() + "',+'" + t4.getText() + "');"; conexion("INSERT INTO clientes (Id, nombre, fecha, direccion, telefono) " + cad); try { conn.close(); if (adm != null) { conn.close(); adm.update(); } } catch (SQLException ex) { Logger.getLogger(nuevocliente.class.getName()).log(Level.SEVERE, null, ex); } if (u != null) { u.setVisible(true); } int x = Integer.parseInt(lblid.getText()); x++; lblid.setText("" + x); t1.setText(""); t2.setText(""); t3.setText(""); t4.setText(""); this.dispose(); } } // GEN-LAST:event_jButton1ActionPerformed