java - 线程中的异常 "main"java.util.Input MismatchException

Question

我正在做类作业。你得计算一下这个月的工资。每次我尝试运行它时，它都会一直这样说:我怎样才能解决这个问题？线程“main”中的异常 java.util.InputMismatchException

在 java.util.Scanner.throwFor (Scanner.java:864)

在 java.util.Scanner.next(Scanner.java:1485)

在 java.util.Scanner.nextInt(Scanner.java:2117)

在 java.util.Scanner.nextInt(Scanner.java: 2076)

在 D2.main(D2.java:23)

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

它似乎失败的提示是:

"Please enter your name"

如果您输入的是您的姓名而不是整数，这就是它抛出异常的原因。扫描仪将寻找一个整数，但你的名字不是。您可能想要替换:

int name = sc.nextInt();

与:

String name = sc.next();

或类似于将名称获取为字符串的内容。