difference and usages for void and integer functions?

Question

examples of uses for Void functions? examples of uses for int functions?

why my void function prints a value to the screen? I thought a void function isn't supposed to return a value.

#include <iostream>
using namespace std;

void hope (int y)
{
cout<< y;
}

int main ()
{

hope(89);
return 0;
}

Answer 1

Printing and returning values are different processes. Printing displays to the screen while returning gives the value back to whatever called the method.
int func()
{
return 5;
}
int a = func();
a now has the value of 5 which the func() method returned.

Answer 2

Thank you Jafca, that clarifies