If we list all the natural numbers below 10 that are multipl

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000.

Solution

public class Test{
   public static void main(String args[]){
       int sum = 0;
       int max = 1000;
       for(int i = 1; i < max; i++){
           if(i % 3 == 0 || i % 5 == 0) sum += i;
       }
       System.out.println(\"The sum of all the multiples of 3 or 5 below \" + max + \" is \" + sum);
   }
}