Largest Odd Number in String LeetCode solution in Java

1
class Solution {
2
  public String largestOddNumber(String num) {
3
    for (int i = num.length() - 1; i > -1; i--) {
4
      if (num.charAt(i) % 2 == 1) return num.substring(0, i + 1);
5
    }
6
    return "";
7
  }
8
}