#includeIn the above example, we create a QStandardItemModel with 2 rows and 3 columns. rowCount function is used to determine the number of rows in the model and it is stored in the variable 'rows'. The output of the function is displayed using qDebug() function. The QStandardItem rowCount function is a part of the Qt core library.int main() { QStandardItemModel model(2,3); int rows = model.rowCount(); qDebug() << "Number of rows in model: " << rows; return 0; }