Why "illegal start of expression"? Java

Question

Exercise 5.2

public class Program
{
public static void main(String[] args) {
int beer = 64;
int whisky = 23;
/ /рассчитайте сумму и выведите ее
System.out.println(beer+whisky);
}
}

Answer 1

Елена Горланова the comment has a wrongly-placed space between the double slashes. / / --> //