欧拉计画1是否无法打印出所有数字？

Question

Find the sum of all the multiples of 3 or 5 below 1000.

My program works for siphoning out all the multiples of 3 and 5, but when I run it to 1000 it only prints out the multiples of 3 and 5 from 363 onwards.

My question is, why? This is my code:

class threeAndFive {
    public static void main(String[] args) {
        for(int i = 1; i < 1000; i++) {
            if (i % 3 == 0) {
                System.out.println(i);
            } else if (i % 5 == 0) {
                System.out.println(i);
            } else if (i % 3 == 0 && i % 5 == 0) {
                System.out.println(i);
            }
        }
    }
}

Sample of output:

The first 7 lines of output are

363
365
366
369
370
372
375

The last 7 lines of output are

985
987
990
993
995
996
999

So how come, if judging by my for loop it should iterate from 3 right up to 999, it is starting output at 363?

EDIT

I found that I was meant to be finding the SUM, not printing out the numbers. Either way, my question still stands.

Answer 1

The code is working perfectly. Your IDE (presumably Eclipse) is simply running out of display room, and won't show you the previous lines. It is possible to configure the number of lines that will be stored in the output console. You could also print the numbers out with just spaces between them and get around the limitation that way.

Answer 2

The order of if statements is also wrong in terms of logic.

if (i % 3 == 0 && i % 5 == 0) 
{
       System.out.println(i);
}
else if (i % 3 == 0) 
{
       System.out.println(i);
} 
else if (i % 5 == 0) 
{
    System.out.println(i);
}