Problem
https://projecteuler.net/problem=1
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.
Answer: 233168
Solution
package org.tvarley.euler.solutions;
import org.tvarley.euler.Solution;
public class Solution001 implements Solution {
public String solve() {
int sum = 0;
for (int i = 0 ; i < 1000 ; i++ ) {
if((i % 3 == 0) || (i % 5 == 0)) {
sum += i;
}
}
return Integer.toString(sum);
}
}