Why should we use endl here??

Question

endl is used to a newline to print second text ....
we can see in the last program
int x = 11;
x++;
cout << x;

//Outputs 12
here we didn't use endl....but why did we use endl in this program??
int x=11;
x++;
cout<<x<<endl;

Answer 1

endl just causes the program to print on the next line.in situations 2,anything you cout next will be on another line

Answer 2

Actually, it means end line the reason it's to put a space between lines
You can use \n

Answer 3

in program2 what should print in next line ??

Answer 4

thank you