#includeIn this example, we include the `graphics.h` package library which provides the `Point` class that has the `GetPositionZ` method. We create a new point object `p1` with coordinates (10, 20, 30) and then use the `GetPositionZ` method to retrieve its z-position. Finally, we print the z-position to the console. Overall, the `GetPositionZ` function is part of a larger package library used in computer graphics and game development to manipulate 3D objects.#include // graphics.h package library is used here using namespace std; int main() { // Create a new point object Point p1(10, 20, 30); // Get the z-position of the point int z = p1.GetPositionZ(); // Print the z-position to the console cout << "The z-position of the point is: " << z << endl; return 0; }