Java实现月工资个人所得税及各保险计算问题

package javajichu;
import java.util.Scanner;
public class SuiFei {
  public static void main(String[] args) {
  System.out.println("按工资标准缴纳相应的税费：");
  Scanner in = new Scanner(System.in);
  float money =0, old = 0, medicare = 0, outWork = 0, house = 0, total = 0;
  System.out.print("请输入应发工资：");
  money = in.nextFloat();
  old = (float) (money * 0.08);// 计算养老保险,税率为8%
  medicare = (float) (money * 0.02);// 计算医保保险，税率为2%
  outWork = (float) (money * 0.002);// 计算失业保险，税率为0.2%
  house = money * 0.12f;// 计算住房公积金，税率为12%
  total = old + medicare + outWork + house;
  money = money - total;
  float gerenTax = geren(money);
  float income = money - gerenTax;
  System.out.println("养老保险：" + old + "元");
  System.out.println("医疗保险：" + medicare + "元");
  System.out.println("失业保险：" + outWork + "元");
  System.out.println("住房公积金：" + house + "元");
  System.out.println("应缴纳保险总额：" + total + "元");
  System.out.println("应交个人所得税：" + gerenTax + "元");
  System.out.println("税后实际收入为：" + income + "元");
  }
  //计算个人所得税，按照2022年最新个人所得税税率表计算
  public static float geren(float money) {
  float one = 0, two = 0, three = 0, four = 0, five = 0, six = 0;
  one = (8000 - 5000) * 0.03f;//第一档满额缴费
  two = (17000 - 8000) * 0.1f;//第二档满额缴费
  three = (30000 - 17000) * 0.2f;//第三档满额缴费
  four = (40000 - 30000) * 0.25f;//第四档满额缴费
  five = (60000 - 40000) * 0.3f;//第五档满额缴费
  six = (85000 - 60000) * 0.35f;//第六档满额缴费
  float tax = 0;
  if (money <= 5000)
    tax = 0;//级别1税率
  else if (money <= 8000)
    tax = (money - 5000) * 0.03f;//级别2税率
  else if (money <= 17000)
    tax = (money - 8000) * 0.1f + one;//级别3税率
  else if (money <= 30000)
    tax = (money - 17000) * 0.2f + two + one;//级别4税率
  else if (money <= 40000)
    tax = (money - 30000) * 0.25f + three + two + one;//级别5税率
  else if (money <= 60000)
    tax = (money - 40000) * 0.3f + four + three + two + one;//级别6税率
  else if (money <= 85000)
    tax = (money - 60000) * 0.35f + five + four + three + two + one;//级别7税率
  else
    tax = (money - 85000) * 0.45f + six + five + four + three + two + one;//级别8税率
  return tax;
  }
}