Question

Java Programming

Basic and Clean Approach, Please post the answer in Text Format.

Computing Tax

Problem Description:

The United States federal personal income tax is calculated based on filing status and taxable income. There are four filing statuses: single filers, married filing jointly, married filing separately, and head of household. The tax rates vary every year. Table 3.2 shows the rates for 2009. If you are, say, single with a taxable income of $10,000, the first $8,350 is taxed at 10% and the other $1,650 is taxed at 15%. So, your tax is $1,082.5.

Table 1

2009 U.S. Federal Personal Tax Rates

Marginal Tax Rate	Single	Married Filing Jointly or Qualified Widow(er)	Married Filing Separately	Head of Household
10%	$0 – $8,350	$0 – $16,700	$0 – $8,350	$0 – $11,950
15%	$8,351– $33,950	$16,701 – $67,900	$8,351 – $33,950	$11,951 – $45,500
25%	$33,951 – $82,250	$67,901 – $137,050	$33,951 – $68,525	$45,501 – $117,450
28%	$82,251 – $171,550	$137,051 – $208,850	$68,525 – $104,425	$117,451 – $190,200
33%	$171,551 – $372,950	$208,851 – $372,950	$104,426 – $186,475	$190,201 - $372,950
35%	$372,951+	$372,951+	$186,476+	$372,951+

You are to write a program to compute personal income tax. Your program should prompt the user to enter the filing status and taxable income and compute the tax. Enter 0 for single filers, 1 for married filing jointly, 2 for married filing separately, and 3 for head of household.

Here are sample runs of the program:

Sample 1:

Enter the filing status: 0

Enter the taxable income: 100000

Tax is 21720.0

Sample 2:

Enter the filing status: 1

Enter the taxable income: 300339

Tax is 76932.87

Sample 3:

Enter the filing status: 2

Enter the taxable income: 123500

Tax is 29665.5

Sample 4:

Enter the filing status: 3

Enter the taxable income: 4545402

Tax is 1565250.7

Answer 1

Here is the Java program

=====================================================================================

import java.util.Scanner;


public class TaxCalculator {

    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {

        System.out.print("Enter the filing status: ");
        int fillingStatus = scanner.nextInt();
        System.out.print("Enter the taxable income: ");
        double income = scanner.nextDouble();
        switch (fillingStatus) {

            case 0:
                singleFillingStatus(income);
                break;
            case 1:
                marriedFillingStatus(income);
                break;
            case 2:
                marriedSeperateFillingStatus(income);
            case 4:
                headFillingStatus(income);
                break;
            default:
                System.out.println("Invalid filling status selected");
                break;
        }


    }

    public static void singleFillingStatus(double income) {
        double tax = 0;
        if (income <= 8350) {
            tax = income * 0.1;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=8350*.1;
            income = income - 8350;
        }
        if (0 <= income && income <= 33950) {
            tax += income * 0.15;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=33950*.15;
            income = income - 33950;
        }
        if (0 <= income && income <= 82250) {
            tax += income * 0.25;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=82250*.25;
            income -= 82250;
        }
        if (0 <= income && income <= 171550) {
            tax += income * 0.28;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=171550*.28;
            income -= 171550;
        }
        if (0 <= income && income <= 372950) {
            tax += income * 0.33;
            System.out.println("Tax is $" + tax);
            return;
        }else{
            tax+=372950*.33;
            income=income-372950;
            tax+=income*0.35;
        }
        System.out.println("Tax is $" + tax);
        return;

    }

    public static void marriedFillingStatus(double income) {
        double tax = 0;
        if (income <= 16700) {
            tax = income * 0.1;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=16700*.1;
            income = income - 16700;
        }
        if (0 <= income && income <= 67900) {
            tax += income * 0.15;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=67900*.15;
            income = income - 67900;
        }
        if (0 <= income && income <= 137050) {
            tax += income * 0.25;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=137050*.25;
            income -= 137050;
        }
        if (0 <= income && income <= 208850) {
            tax += income * 0.28;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=208850*.28;
            income -= 208850;
        }
        if (0 <= income && income <= 372950) {
            tax += income * 0.33;
            System.out.println("Tax is $" + tax);
            return;
        }else{
            tax+=372950*.33;
            income=income-372950;
            tax+=income*0.35;
        }
        System.out.println("Tax is $" + tax);
        return;


    }

    public static void marriedSeperateFillingStatus(double income) {
        double tax = 0;
        if (income <= 8350) {
            tax = income * 0.1;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=8350*.1;
            income = income - 8350;
        }
        if (0 <= income && income <= 33950) {
            tax += income * 0.15;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=33950*.15;
            income = income - 33950;
        }
        if (0 <= income && income <= 68525) {
            tax += income * 0.25;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=68525*.25;
            income -= 68525;
        }
        if (0 <= income && income <= 104425) {
            tax += income * 0.28;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=104425*.28;
            income -= 104425;
        }
        if (0 <= income && income <= 186475) {
            tax += income * 0.33;
            System.out.println("Tax is $" + tax);
            return;
        }else{
            tax+=186475*.33;
            income=income-186475;
            tax+=income*0.35;
        }
        System.out.println("Tax is $" + tax);
        return;


    }

    public static void headFillingStatus(double income) {
        double tax = 0;
        if (income <= 11950) {
            tax = income * 0.1;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=11950*.1;
            income = income - 11950;
        }
        if (0 <= income && income <= 45500) {
            tax += income * 0.15;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=45500*.15;
            income = income - 45500;
        }
        if (0 <= income && income <= 117450) {
            tax += income * 0.25;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=117450*.25;
            income -= 117450;
        }
        if (0 <= income && income <= 190200) {
            tax += income * 0.28;
            System.out.println("Tax is $" + tax);
            return;
        } else {
            tax+=190200*.28;
            income -= 190200;
        }
        if (0 <= income && income <= 372950) {
            tax += income * 0.33;
            System.out.println("Tax is $" + tax);
            return;
        }else{
            tax+=372950*.33;
            income=income-372950;
            tax+=income*0.35;
        }
        System.out.println("Tax is $" + tax);
        return;

    }
}