57个挑战(python+java)-lesson14

上题目

准备好业务逻辑流程图：

python 版本

import re

def is_numerical(orderamount):
      print("The order amount is {0}".format(orderamount))
      return re.match(r'[+-]?\d+.?\d*#39;,orderamount) != None

class TaxCalculator:
    def __init__(this):
      this.orderamount = 0
      this.state = ""
      this.tax = 5.5

    def get_input(this):
      orderamount = input("What is the order amount\n")
      while is_numerical(orderamount) == False:
         orderamount = input("Please provide numerical input\n What is the order amount\n")
      state = input("What is the state\n")
      this.orderamount = float(orderamount)
      this.state = state.upper()

    def judge_info(this):
       if this.state == "WI":
          this.print_with_tax()

       if this.state != "WI":
          this.print_without_tax()       

    def print_with_tax(this):
          taxcharge = this.orderamount*this.tax/100
          print("The tax is {0}".format(taxcharge))
          print("The total is {0}".format(this.orderamount+taxcharge))

    def print_without_tax(this):
          print("The total is {0}".format(this.orderamount))


lesson14 = TaxCalculator()
lesson14.get_input()
lesson14.judge_info()

java 版本

import java.util.Scanner;

public


class TaxCaculator{
private Double orderamount;
private String state;
private Double tax;

TaxCaculator(){
this.orderamount =  (double) 0;
this.state = "";
this.tax = 5.5;
}

private static boolean isNumeric(String secondstring) {


return secondstring != null & & secondstring.matches("-?\\d+(\\.\\d+)?");

}

void Get_input()
{
Scanner sc = new
Scanner(System. in);
System.out.println("What is the order amount? ");
String orderamountstr = sc.next();
while (TaxCaculator.isNumeric(orderamountstr) == false)
    {
        orderamountstr = sc.next();
    }
    System.out.println("What is the state? ");
    String statestr = sc.next();

    this.orderamount = Double.parseDouble(orderamountstr);
    this.state = statestr.toUpperCase();

    }

    void JudgeInfo()
    {
    System.out.println("The state info is " + this.state);
    if (this.state.equals("WI"))
        {
            this.printwithtax();
        }
        else
        {
            this.printwithouttax();
        }
        }
        void printwithtax()
        {

        System.out.println("The tax is: " + this.orderamount * this.tax / 100);
        System.out.println("The total is #34; + (this.orderamount + this.orderamount * this.tax / 100));

        }

        void printwithouttax()
        {
        System.out.println("The total is #34; + this.orderamount);

        }

        public static void main(String[] args){
        TaxCaculator lesson14 = new TaxCaculator();
        lesson14.Get_input();
        lesson14.JudgeInfo();
        }

        }