Answer: Scope resolution operator(::)
Explanation: A member function and the constructor can be called within the function easily but for the execution of the these components outside the class , a special operator is required to call the functions. The scope resolution operator(::) preceding with the name of class is thus used for defining of the function outside class.This operator maintains the cope of the function and constructor outside the class.
If you happen to meet that kind of problem, the most appropriate series of steps to take in troubleshooting the issue is that first, are there steps that i haven't done? If there's no power even if it is plugged in, try to check the wire. Look for a different wire cable and connect it to your printer. If it still does not work, then check it over to the service center.
Hub , switch port , transmission media , hope I helped
