정동섭

Tax.java

// 정동섭
import java.util.ArrayList;
import java.util.Scanner;

class TaxRate{
    final static int INTEREST1= 6;
    final static int INTEREST2= 15;
    final static int INTEREST3= 24;
    final static int INTEREST4= 35;
    final static int INTEREST5= 38;
    final static int INTEREST6= 40;
    final static int INTEREST7= 42;
    final static int INTEREST8= 45;
    static final int[] INTERESTS= new int[]{INTEREST1, INTEREST2, INTEREST3, INTEREST4, INTEREST5, INTEREST6, INTEREST7, INTEREST8};
}

class TaxLine{
    final static double WON= 1000000;
    final static double STAGE1= 0;
    final static double STAGE2= 12 * WON;
    final static double STAGE3= 46 * WON;
    final static double STAGE4= 88 * WON;
    final static double STAGE5= 150 * WON;
    final static double STAGE6= 300 * WON;
    final static double STAGE7= 500 * WON;
    final static double STAGE8= 1000 * WON;

    static final double[] STAGES= new double[]{STAGE1, STAGE2, STAGE3, STAGE4, STAGE5, STAGE6, STAGE7, STAGE8};
}

class Progressive{
    final static long WON= 10000;
    final static long STAGE1= 0;
    final static long STAGE2= 108 * WON;
    final static long STAGE3= 522 * WON;
    final static long STAGE4= 1490 * WON;
    final static long STAGE5= 1940 * WON;
    final static long STAGE6= 2540 * WON;
    final static long STAGE7= 3540 * WON;
    final static long STAGE8= 6540 * WON;
    static final long[] STAGES= new long[]{STAGE1, STAGE2, STAGE3, STAGE4, STAGE5, STAGE6, STAGE7, STAGE8};

}

public class Tax {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // 연소득 금액 입력
        System.out.println("[과세금액 계산 프로그램]");
        System.out.print("연소득을 입력해 주세요.:");
        long income = scanner.nextLong();

//        long income= 15000000;
//        long income= 20000000;
//        long income= 48000000;
//        long income= 92000000;
//        long income= 192000000;

        long tax = calcTax(income);
        long progressive = progressive(income);

        System.out.println("[세율에 의한 세금]:\t\t\t\t" + tax);
        System.out.println("[누진공제 계산에 의한 세금]:\t\t" + progressive);
    }

    static long calcTax(long income){
        long sumed_tax = 0L;
        int taxRate = 0;

        for(int i = 1 ; i < TaxLine.STAGES.length ; i++){
            if(income > TaxLine.STAGES[i]){
                double line = TaxLine.STAGES[i-1];
                double toAmt = TaxLine.STAGES[i];
                taxRate = TaxRate.INTERESTS[i-1];
                long calcResult = (long)(toAmt-line) * taxRate / 100;
                sumed_tax = sumed_tax + calcResult;
                
                System.out.printf("%10f * %2d%% = %10d\n", toAmt - line, taxRate, calcResult);

                if(i == TaxLine.STAGES.length-1){
                    income -= (long) TaxLine.STAGES[i];
                    taxRate = TaxRate.INTERESTS[i];
                    calcResult = income * taxRate / 100;
                    sumed_tax = sumed_tax + calcResult;
                    System.out.printf("%10d * %2d%% = %10d\n", income, taxRate, calcResult);
                }
            }
            else{
                income = (long) (income - TaxLine.STAGES[i-1]);
                taxRate = TaxRate.INTERESTS[i-1];
                long calcResult = income * taxRate / 100;
                sumed_tax = sumed_tax + calcResult;
                System.out.printf("%10d * %2d%% = %10d\n", income, taxRate, calcResult);
                break;
            }
        }

        return sumed_tax;
    }



    static long progressive(long income){
        long progressive_tax = 0L;
        int progressive_stage = 0;
        int taxRate = 0;

        for(int i = 0 ; i < TaxLine.STAGES.length-1 ; i++){
            int stage = (int)TaxLine.STAGES[i];
            int next_stage = (int)TaxLine.STAGES[i+1];

            if(stage < income && income <= next_stage){
                progressive_stage = (int)(Progressive.STAGES[i]);
                taxRate = TaxRate.INTERESTS[i];
                break;
            }


            if(i == 6){
                progressive_stage = (int)(Progressive.STAGES[i+1]);
                taxRate = TaxRate.INTERESTS[i+1];
            }
        }

        progressive_tax = income * taxRate / 100 - progressive_stage;

        return progressive_tax;
    }
}

`import java.util.ArrayList;
import java.util.Scanner;

class TaxRate{
    final static double INTEREST1= 0.06;
    final static double INTEREST2= 1.5;
    final static double INTEREST3= 2.4;
    final static double INTEREST4= 3.5;
    final static double INTEREST5= 3.8;
    final static double INTEREST6= 0.4;
    final static double INTEREST7= 4.2;
    final static double INTEREST8= 4.5;
    static final double[] INTERESTS= new double[]{INTEREST1, INTEREST2, INTEREST3, INTEREST4, INTEREST5, INTEREST6, INTEREST7, INTEREST8};
}

class TaxLine{
    final static double WON= 1000000;
    final static double STAGE1= 12 * WON;
    final static double STAGE2= 12 * WON;
    final static double STAGE3= 46 * WON;
    final static double STAGE4= 88 * WON;
    final static double STAGE5= 15 * WON;
    final static double STAGE6= 30 * WON;
    final static double STAGE7= 50 * WON;
    final static double STAGE8= 100 * WON;

    static final double[] STAGES= new double[]{STAGE1, STAGE2, STAGE3, STAGE4, STAGE5, STAGE6, STAGE7, STAGE8};
}

class Progressive{
    final static long WON= 10000;
    final static long STAGE1= 0;
    final static long STAGE2= 108 * WON;
    final static long STAGE3= 522 * WON;
    final static long STAGE4= 1490 * WON;
    final static long STAGE5= 1940 * WON;
    final static long STAGE6= 2540 * WON;
    final static long STAGE7= 3540 * WON;
    final static long STAGE8= 6540 * WON;
    static final long[] STAGES= new long[]{STAGE1, STAGE2, STAGE3, STAGE4, STAGE5, STAGE6, STAGE7, STAGE8};

}

public class Tax {
    private long income, amount;
    private double rate;
    private ArrayList<Long> arrayList;

    Tax(long income) {
        this.income = income;
        this.amount= 0;
    }

    public void setAmount(long amount) {
        this.amount = amount;
    }

    public void setRate(double rate) {
        this.rate = rate;
    }

    public static void main(String[] args) {
        System.out.println("과세금액 계산 프로그램");

        System.out.printf("연소득을 입력해 주세요.:\n");
        try(Scanner sc = new Scanner(System.in);) {
//        long income = sc.nextLong();
            long income= 12000000;
//            long income= 15000000;
//            long income= 20000000;
//            long income= 48000000;
//            long income= 92000000;
//            long income= 192000000;

            Tax tax = new Tax(income);
            tax= tax.calTax(tax);
            tax.printTax(tax);

//        System.out.println("[세율에 의한 세금]: " + asPercentageTax(tax));
//        System.out.println("[누진공제 계산에 의한 세금]: " + progressiveTax(income));
        }catch (Exception e){
            System.out.println(e);
        }
    }

    private Tax calTax(Tax tax) {
        ArrayList<Long> taxes= new ArrayList<>();
        long income= tax.income;

        if (TaxLine.STAGE1<= income){
            if (TaxLine.STAGE1 == income)
                tax.arrayList.add(income);

            long remain= (long) (income % TaxLine.STAGE1);
            tax.arrayList.add(remain);
        }

        tax.arrayList= taxes;
        return tax;
    }

    private void printTax(Tax tax) throws Exception {
        if (tax.arrayList.size() == 0){
            throw new Exception("size 0");
        }

        long income_part= 0l;
        double rate= 0.0;
        for (int i=0; i<8; i++){
            income_part= tax.arrayList.get(i);
            rate= TaxRate.INTERESTS[i];
            System.out.printf(String.format("%d * %.2f  =  %d\n"
                    , income_part, rate, (long)(income_part*rate)));
        }
    }
}