165. Compare Version Numbers

class Solution {
    public int compareVersion(String version1, String version2) {
        String[] array1 = version1.split("\\.");
        String[] array2 = version2.split("\\.");
        int maxLen = Math.max(array1.length, array2.length);
        for (int i = 0; i < maxLen; i++) {
            int val1 = 0;
            int val2 = 0;
            if (i < array1.length) {
                val1 = Integer.parseInt(array1[i]);
            }
            if (i < array2.length) {
                val2 = Integer.parseInt(array2[i]);
            }
            if (val1 < val2) {
                return -1;
            } else if(val1 > val2) {
                return 1;
            }
        }
        return 0;
    }
}