Calculate Amount Paid in Taxes LeetCode solution in Java

1
class Solution {
2
  public double calculateTax(int[][] brackets, int income) {
3
    int prevIncome = 0;
4
    double res = 0;
5
    for (int i = 0; i < brackets.length; i++) {
6
      double diff = brackets[i][0] - prevIncome;
7
      if (diff > income) {
8
        res += (income * brackets[i][1] / 100.0);
9
        income = 0;
10
      } else {
11
        res += (diff * brackets[i][1]) / 100;
12
        income -= diff;
13
      }
14
      prevIncome = brackets[i][0];
15
      if (income == 0) return res;
16
      // System.out.println(prevIncome+" "+res+ " "+ income +" "+ diff + "
17
      // "+(diff*brackets[i][1]/100));
18
    }
19
    return res;
20
  }
21
}