New to Java

Does anyone have any experience using
cout<< and <<endl ?

I've never seen these in any of the texts I'm using.

For example can someone tell me what they indicate in the follwing recursive method?

void cheers(int n) {
if ( n==1 )
cout << "Hurray" << endl; (orSystem.out.println("Hurray");
else {
System.out.println("Hip"); (or cout << "Hip" << endl);
cheers(n-1)
}

Thanks,
Mark