What is the meaning of having void in the constructor definition?

Question

Given the following code:

#pragma once

class B
{
public:

    B(void)
    {
    }

    ~B(void)
    {
    }
};

I know I can also write this:

Answer 1

I just wanted to add that when you use void after the parameters like function():void it is used to indicate that the function does not return a value.