我很困惑我是否遵循了這一權(quán)利，并且在尋求安慰和一些幫助。所以我的主要問題是我是否遵循我的導(dǎo)師問題：當(dāng)他說使用哨兵值循環(huán)構(gòu)建它時？其次，如何將總計(jì)四舍五入到兩位小數(shù)？如果它有助于我的任務(wù)是這樣的：說明：使用哨兵值循環(huán)。詢問每個用戶：車輛類型（可以使用字符串以外的其他東西，例如：1 表示經(jīng)濟(jì)型，2 表示轎車等） 租用天數(shù) 計(jì)算（對于每個客戶）：租金、稅費(fèi)、應(yīng)付總額。有三種不同的租賃選擇，價格不同：經(jīng)濟(jì)型 @ 31.76、轎車 @ 40.32、SUV @ 47.56。[注意：僅考慮全天單位（無小時費(fèi)率）]。銷售稅 = TOTAL 的 6%。創(chuàng)建匯總數(shù)據(jù)：客戶數(shù)量 收集到的總金額。此外，包括 IPO、算法和桌面檢查值（設(shè)計(jì)文檔）。{我的設(shè)計(jì)和進(jìn)度}包易派；導(dǎo)入 java.util.*; 導(dǎo)入 java.lang.Math;公共課嗯{int count = 0;static int days;static double DailyFee, NontaxTotal, CarType, Total;public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); System.out.print("What vehical would you like to rent?\n"); System.out.println("Enter 1 for an economy car\n"); System.out.println("Enter 2 for a sedan car\n"); System.out.println("Enter 3 for an SUV"); CarType = keyboard.nextInt(); if (CarType == 1) DailyFee=31.76; else if(CarType == 2) DailyFee=40.32; else if(CarType == 3) DailyFee=43.50; System.out.print("Please enter the number of days rented. (Example; 3) : "); days = keyboard.nextInt(); NontaxTotal = (DailyFee * days); Total = (NontaxTotal * 1.06); System.out.printf("The total amount due is $" + Total);}}
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布蘭登，沒有哨兵循環(huán)。在我看來，這就是你想要的程序，
import java.util.*;
public class Stack3{
public static void main(String []args){
int count=0;
int days;
double DailyFee=0, NontaxTotal, CarType, Total,FullTotal=0;
Scanner in=new Scanner(System.in);
System.out.println("If there are any customer press 1 else press 0");
int cus=in.nextInt();
// this is sentinel loop
while(cus!=0){
count++;
System.out.print("What vehical would you like to rent?\n");
System.out.println("Enter 1 for an economy car\n");
System.out.println("Enter 2 for a sedan car\n");
System.out.println("Enter 3 for an SUV");
CarType = in.nextInt();
if (CarType == 1)
DailyFee=31.76;
else if(CarType == 2)
DailyFee=40.32;
else if(CarType == 3)
DailyFee=43.50;
System.out.print("Please enter the number of days rented. (Example; 3) : ");
days = in.nextInt();
double x=days;
NontaxTotal = (DailyFee * x);
Total = (NontaxTotal * 1.06);
FullTotal+=Total;
//included 2 decimals only
System.out.printf("The total amount due is $ %.2f \n",Total);
System.out.println("If there are any customer press 1 else press 0");
cus=in.nextInt();
}
System.out.println("Count of customers :- "+count);
System.out.printf("Total of the Day :- %.2f",FullTotal);
}
}
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