Why is using '<<' before 'endl' correct and why?

Question

Hey, on a sololearn question the following syntax was used. But I don't understand why we need to use '<<' before 'endl'. Can anyone explain? Thanks a lot!

int main()
{
int x;
x = 4 + 6;
cout << x << endl;
}

Answer 1

Helina Abye Gebreyes endl is the manipulator for new line... where you want new line is to be provided to the endl...

if you write cout << endl, it prints new line to console output stream...

if you put file pointer in place of cout, endl places new line to that file...

coming to << , it's operator which is used for writing to object ( cout or any file pointer)... this << operator allows you to write int, string and new line also to output stream.. one can say that << operator is overloaded to write different data type to output..