207. 인터페이스 구현과 조건에 따른 부분 합

1interface Picker {
2    int total(int[] v);
3}
4 
5class PartSum implements Picker {
6    boolean odd;
7    PartSum(boolean odd) { this.odd = odd; }
8    public int total(int[] v) {
9        int s = 0;
10        for (int x : v) {
11            if ((x % 2 == 1) == odd) s += x;
12        }
13        return s;
14    }
15}
16 
17public class Main {
18    public static void main(String[] args) {
19        int[] v = {3, 4, 5, 8};
20        Picker p = new PartSum(false);
21        System.out.print(p.total(v) + " ");
22        p = new PartSum(true);
23        System.out.println(p.total(v));
24    }
25}