#includeThis code creates a new QHash object and checks if it is empty using the empty() function. Since the hash table is new and has not been populated with any elements, the output will be "Empty hash table." Package library: Qt library, specifically the QtCore module.#include int main() { QHash myHash; if (myHash.empty()) { qDebug() << "Empty hash table."; } else { qDebug() << "Hash table not empty."; } return 0; }