HW7.12

 1 import java.util.Scanner;
 2 
 3 public class Solution
 4 {
 5     public static void main(String[] args)
 6     {
 7         double[] rates = {0.10, 0.15, 0.25, 0.28, 0.33, 0.35};
 8         int[][] brackets = 
 9         {
10             {8350, 33950, 82250, 171550, 372950}, 
11             {16700, 67900, 137050, 208850, 372950}, 
12             {8350, 33950, 68525, 104425, 186475}, 
13             {11950, 45500, 117450, 190200, 372950}
14         };
15 
16         Scanner input = new Scanner(System.in);
17         System.out.print("Input the number of the people(0 to 3): ");
18         int person = input.nextInt();
19         System.out.print("Input the income: ");
20         int income = input.nextInt();
21 
22         input.close();
23 
24         double tax = computeTax(brackets, rates, person, income);
25         System.out.println("The tax is " + tax);
26     }
27 
28     public static double computeTax(int[][] brackets, double[] rates, int person, int income)
29     {
30         int largerCount = 0;
31         for(int i = 0; i < brackets[person].length; i++)
32         {
33             if(brackets[person][i] < income)
34                 largerCount++;
35             else
36                 break;
37         }
38 
39         if(largerCount == 0)
40             return 0;
41         else if(largerCount == 1)
42             return (income - brackets[person][0]) * rates[0];
43         else
44         {
45             int tax = 0;
46             tax += (income - brackets[person][largerCount - 1]) * rates[largerCount];
47             largerCount--;
48             while(largerCount > 0)
49             {
50                 tax += (brackets[person][largerCount] - brackets[person][largerCount - 1]) * rates[largerCount];
51                 largerCount--;
52             }
53             tax += brackets[person][0] * rates[0];
54             return tax;
55         }
56     }
57 }