private void jMICalculadoraActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMICalculadoraActionPerformed
        try {
            Runtime.getRuntime().exec("C:\\Windows\\System32\\calc.exe");
        } catch (IOException e) {
            JOptionPane.showMessageDialog(null, "Erro: " + e);
        }
    }//GEN-LAST:event_jMICalculadoraActionPerformed