Java Cource Bug 6.2

Question

Hello, I want to learn Java but there is a bug. In 6.2 is the same like my solution but it doesnt accept it. Why?

public class Program
{
public static void main(String[] args) {
int beer = 64;
int whisky = 23;
//calculate the sum and output it
System.out.println(beer+whiskey) ;
}
}

Answer 1

I‘m so blind , thank youuu