Count Integers With Even Digit Sum LeetCode solution in Java

1
class Solution {
2
  public int countEven(int num) {
3
    int count = 0;
4
    for (int i = 1; i <= num; i++) if (sumDig(i)) count++;
5
    return count;
6
  }
7

8
  private boolean sumDig(int n) {
9
    int sum = 0;
10
    while (n > 0) {
11
      sum += n % 10;
12
      n /= 10;
13
    }
14
    return (sum & 1) == 0 ? true : false;
15
  }
16
}