Thread: Java-gaming.org trivia question!!! HELP!

I tried to register to their forum im trying to learn java. so i try to run the following code

public class Main {
 
    public static void main(String[] args) {
 
        int i = 2;
        int d = "WLM".hashCode() % 3000;
        int e = "KLR".hashCode() % 3000;
        for (int v = 0; v <= e; v++)
            i = (i ^ v) % d;
        return i;
 
    }
}

What year was einstein dead?: 1955
What is the returned value?
What is the greatest common divisor of the previous two numbers?

but errors says: Error10, 16) java: incompatible types: unexpected return value im using IntelliJ IDEA

unexpected return value

The method is defined as void so it should not return a value.