miniProject01\Tax.java

/*
 작성자: 고지민
*/
import java.util.Scanner;

public class Main {
    private static final int[] rates = {6, 15, 24, 35, 38, 40, 42, 45};
    private static final int[] standards = {0, 12_000_000, 46_000_000, 88_000_000, 150_000_000, 300_000_000, 500_000_000, 1_000_000_000};
    private static final int[] deductibles = {0, 1_080_000, 5_220_000, 14_900_000, 19_400_000, 25_400_000, 35_400_000, 65_400_000};
    public static void main(String[] args) {
        Scanner input= new Scanner(System.in);
        System.out.println("[과세금액 계산 프로그램]");
        int index=0;
        int tax_sum=0;

        long salary=inputSalary("연소득을 입력해 주세요.:",input,0,Long.MAX_VALUE);
        long temp=salary;
        for(int i=0;0<temp&&i<standards.length;i++){
            if(i!=standards.length-1)
                System.out.printf("%10d * %2d%% = %15d\n", Math.min(standards[i + 1]-standards[i] ,temp), rates[i], Math.min(standards[i + 1]-standards[i],temp) * rates[i] / 100);
            else {
                System.out.printf("%10d * %2d%% = %15d\n", temp, rates[i], temp * rates[i] / 100);
            }
            tax_sum+=Math.min(standards[i + 1]-standards[i],temp) * rates[i] / 100;
            temp-=Math.min(standards[i + 1]-standards[i],temp);
            index=i;
        }

        System.out.println();
        System.out.print("[세율에 의한 세금]:");
        System.out.printf("%17d\n",tax_sum);
        System.out.print("[누진공제 계산에 의한 세금]:");
        System.out.printf("%10d\n", index==0?0: salary* rates[index] / 100-deductibles[index]);

    }

    public static long inputSalary(String message,Scanner input,long min,long max){
        try {
            System.out.printf(message);
            long value= input.nextLong();
            if (value<min||value>max)
                throw new Exception();
            return value;
        }catch (Exception e){
            System.out.println("다시 입력해주세요.");
            return inputSalary(message,input,min,max);
        }
    }
}