tools.java

是一个java的学习小程序

class Tools{
static double startTaxSalary = 2000;
static double computeTax(double salary){

  
  double taxsalary = salary -startTaxSalary;
  double tax=0;
  if(taxsalary<=0) tax = 0;
  else if(taxsalary<= 500) tax = taxsalary*0.05-0;
  else if(taxsalary>500&&taxsalary<=2000) tax = taxsalary*0.1-25;
  else if(taxsalary>2000&&taxsalary<=5000) tax = taxsalary*0.15-125;
  else if(taxsalary>5000&&taxsalary<=20000) tax = taxsalary*0.2-375;
  else if(taxsalary>20000&&taxsalary<=40000) tax = taxsalary*0.25-1375;
  else if(taxsalary>40000&&taxsalary<=60000) tax = taxsalary*0.3-3375;
  else if(taxsalary>60000&&taxsalary<=80000) tax = taxsalary*0.35-6375;
  else if(taxsalary>80000&&taxsalary<=100000) tax= taxsalary*0.4-10375;
  else tax = taxsalary*0.45 - 15375;
  return tax;
}
public static void main(String[] args){
Tools t = new Tools();
System.out.println(Tools.computeTax(5000));}
}