线程“main”java.util.Input中的异常MismatchException

Question

import java.util.Scanner;

public class D2
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);

        int L1Cs = 80;
        int L2Cs = 120;
        int L3Cs = 160;
        int L1Ct = 100;
        int L2Ct = 140;
        int L3Ct = 180;
        int L1Csv = 100;
        int L2Csv = 150;
        int L3Csv = 200;
        int BSalary = 3000;
        int Stotal, Ttotal, SVtotal;

        System.out.println("Please enter your name");
        int name = sc.nextInt();

        System.out.println("How many sedans have you sold this month");
        int Sedans = sc.nextInt();

        System.out.println("How many trucks have you sold this month");
        int Trucks = sc.nextInt();

        System.out.println("How many SUVs have you sold this month");
        int SUVs = sc.nextInt();


        if(Sedans <= 10)
        {
            Stotal = (L1Cs * Sedans);
        }
        else if (Sedans >= 11 && Sedans <=20)
        {
            Stotal = (L1Cs*10 +(Sedans - 10) * L2Cs);
        }

        else
        {
            Stotal = (L1Cs*10 +L1Cs *10 + (Sedans - 10) * L3Cs);
        }

        System.out.println("Your comission for the sedans is:" + Stotal);


        if(Trucks <= 10)
        {
            Ttotal = (L1Cs * Trucks);
        }
        else if (Trucks >= 11 && Trucks <=20)
        {
            Ttotal = (L1Ct*10 + (Trucks - 10) * L2Ct);
        }
        else
        {
            Ttotal = (L1Ct*10 + L2Ct *10 + (Trucks - 10) * L3Ct);
        }
        System.out.println("Your comission for the trucks is:" + Ttotal);


        if(SUVs <= 10)
        {
            SVtotal = (L1Cs * SUVs);
        }
            else if (SUVs >= 11 && SUVs <=20)
        {
            SVtotal = (L1Csv*10 + (SUVs  - 10) * L2Csv);
        }
        else
        {
            SVtotal = (L1Csv*10 + L2Csv *10 + (SUVs - 10) * L3Csv);
        }
        System.out.println("Your comission for the SUVs is:" + SVtotal);

    double comission = (Stotal + Ttotal + SVtotal);
    double MSalary = (comission + 3000);
    }
}

Answer 1

它似乎失败了的提示是：

"Please enter your name"

如果输入的是您的名称，而不是整数，这就是它引发异常的原因。扫描仪将寻找一个整数，而您的名字不是这个整数。您可能需要替换：

int name = sc.nextInt();

与：

String name = sc.next();