arrays

Hi, i am trying to create program for Tax

but i am having problem creating the tax formula using arrays
Output should be something like the following:

Tax filing status can be as follows:
(0-single, 1-married, 2-widowed, 3-living common-law, 4-to quit this program)
Enter the filing status: 0
Enter the taxable income in $ 400000
Tax is $117683.5

problem is that it works only if income is 40000$
it does work properly if input is anything else
plz help

Code:

import java.util.Scanner; public class ComputeTax { /** * @param args */ public static void main(String[] args) { //Scanner Scanner myKeyboard = new Scanner(System.in); //Welcome message: System.out.println("Welcome to Revenue Agency Taxation"); System.out.println("\nTax filing status can be as follows:" + "\n(0-single, 1-married, 2-widowed, 2-living common-law, 4-to quit this program)"); System.out.print("\nEnter the filing status: "); //program starting algorithm: double [] rates= {0.10, 0.15, 0.25, 0.28, 0.33, 0.35}; double[][] brackets = { {8350, 33950, 82250, 171550, 372950}, //single {16700, 20885, 67900, 137050, 372950}, // Married {8350, 33950, 68525, 104425, 186475}, // Widowed {11950, 45500, 117450, 190200, 372950} // Living common-law }; int i = myKeyboard.nextInt(); while (i<4 & i>=0) { System.out.print("\nEnter the taxable income in $ "); double income = myKeyboard.nextDouble(); //tax calculation: double tax = 0; { if(i==0) //single { // for (i=0; income > brackets[0][4]; i++ ) tax = brackets[ 0][ 0] * rates[ 0] + ( brackets[ 0][ 1] - brackets[ 0][ 0]) * rates[ 1] + ( brackets[ 0][ 2] - brackets[ 0][ 1]) * rates[ 2] + ( brackets[ 0][ 3] - brackets[ 0][ 2]) * rates[ 3] + ( brackets[ 0][ 4] - brackets[ 0][ 3]) * rates[ 4] + ( income - brackets[ 0][ 4]) * rates[ 5]; } if(i==1) // Married tax = brackets[ 1][ 0] * rates[ 0] + ( brackets[ 1][ 1] - brackets[ 1][ 0]) * rates[ 1] + ( brackets[ 1][ 2] - brackets[ 1][ 1]) * rates[ 2] + ( brackets[ 1][ 3] - brackets[ 1][ 2]) * rates[ 3] + ( brackets[ 1][ 4] - brackets[ 1][ 3]) * rates[ 4] + ( income - brackets[ 1][ 4]) * rates[ 5]; if(i==2) // Widowed tax = brackets[ 0][ 0] * rates[ 0] + ( brackets[ 2][ 1] - brackets[ 2][ 0]) * rates[ 1] + ( brackets[ 2][ 2] - brackets[ 2][ 1]) * rates[ 2] + ( brackets[ 2][ 3] - brackets[ 2][ 2]) * rates[ 3] + ( brackets[ 2][ 4] - brackets[ 2][ 3]) * rates[ 4] + ( income - brackets[ 2][ 4]) * rates[ 5]; if(i==3) // Living common-law tax = brackets[ 3][ 0] * rates[ 0] + ( brackets[ 3][ 1] - brackets[ 3][ 0]) * rates[ 1] + ( brackets[ 3][ 2] - brackets[ 3][ 1]) * rates[ 2] + ( brackets[ 3][ 3] - brackets[ 3][ 2]) * rates[ 3] + ( brackets[ 3][ 4] - brackets[ 3][ 3]) * rates[ 4] + ( income - brackets[ 3][ 4]) * rates[ 5]; } System.out.println("\nTax is $" + tax ); } System.out.println("\nGood Bye" ); } }