QString message = QString::sprintf("The answer to %s is %d", "life, the universe, and everything", 42);
double number = 3.141592; QString message = QString::sprintf("The value of pi is approximately %.2f", number);In this example, the function formats the string "The value of pi is approximately %.2f" with the argument 3.141592. The "%.2f" format specifier specifies that the number should be formatted to two decimal places. The result is a QString object containing the text "The value of pi is approximately 3.14". The QString sprintf function is part of the Qt library, which is a cross-platform application development framework.