Appending data, if file exists.

[Vikram.Saralaya]

if(ui->checkBox->isChecked())
{
    filename = QFileDialog::getSaveFileName(...);
    file = new QFile(filename);
    file->open(QIODevice::Append | QIODevice::Text))
    {
        qDebug() << "File opened in append mode" << filename;
    }
}
 
if(!ui->checkBox->isChecked())
{
    QTextStream fout(file);
    fout << '\n' << '\n' << '\n';
    file->close();
}

if(ui->checkBox->isChecked())
{
    filename = QFileDialog::getSaveFileName(...);
    file = new QFile(filename);
    file->open(QIODevice::Append | QIODevice::Text))
    {
        qDebug() << "File opened in append mode" << filename;
    }
}

if(!ui->checkBox->isChecked())
{
    QTextStream fout(file);
    fout << '\n' << '\n' << '\n';
    file->close();
}

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