java.util.InputMismatchException errors in reading from file, what's wrong with type?

Question

I'm learning from Java for Dummies and I don't know why I get these errors. I Googled some information.

java.util.InputMismatchException means that I want to read wrong type of values. For example file looks like:

2543
Robert

and I force the program to take from first line string. In my opinion everything in my file look right. I compared my code to sample code in the book and I can't find any mistakes.

I use Netbeans.

The File "EmployeeInfo" look like this:

Angela 
nurse 
2000.23

The main class:

import java.util.Scanner;
import java.io.File;
import java.io.IOException;
public class DoPayroll {       
    public static void main(String[] args)   throws IOException{
        Scanner diskScanner = new Scanner (new File("EmployeeInfo.txt"));
        payOneEmployee(diskScanner);
    }

    static void payOneEmployee(Scanner aScanner)
    {
        Employee anEmployee = new Employee();

        anEmployee.setName(aScanner.nextLine());
        anEmployee.SetJobTitle(aScanner.nextLine());
        anEmployee.cutCheck(aScanner.nextDouble());
        aScanner.nextLine();
    }
}

The class:

public class Employee {
    private String name;
    private String jobTitle;

    public void setName(String mName)
    {
        name = mName;
    }
    public String GetName()
    {
        return name;
    }
    public  void SetJobTitle(String mJobTitle)
    {
        jobTitle =  mJobTitle;
    }
    public String GetJobTitle()
    {
        return jobTitle;
    }

    public void cutCheck(double amountPaid)
    {
        System.out.printf("Pay to the order of %s", name);
        System.out.printf("%s ***€", jobTitle);
        System.out.printf("%,.2f\n", amountPaid);
    }
}

I think its due to the files contents...EMPTY scans fine (after Angela) and is pushed to setJobTitle. NextLine is nurse so nextDouble throws an input mismatch...just a guess — boxed__l
– boxed__l, Commented Aug 16, 2013 at 12:45
I want to show you that Angela, nurse and 2000.23 are in different lines, so I need to put the free line. It's connected with forum. — MyWay
– MyWay, Commented Aug 16, 2013 at 12:52
Ok, comment out aScanner.nextLine(); (last line in loop) from the method and run the program — boxed__l
– boxed__l, Commented Aug 16, 2013 at 13:03

Deepend · Accepted Answer · 2014-06-22 12:18:35Z

1

Your code is perfectly fine. I encountered the same problem with the Java for Dummies book.

For me, the problem lay within the formatting of the file. I am no expert (yet), so I am sorry to be unable to explain in further detail, but the InputMismatchException is thrown because I was using a . to separate the decimals while my system's standard decimals are separated by a ,

I propose you try formatting your file like this:

Angela
nurse
2000,15

edited Jun 22, 2014 at 12:18

Deepend

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answered Jun 22, 2014 at 11:49

starfish

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Comments

muthukumar · Accepted Answer · 2013-08-16 13:02:38Z

0

you can write like this also

static void payOneEmployee(Scanner aScanner)
    {
        Employee anEmployee = new Employee();

        List<String> employeeValueList = new ArrayList();
        while (aScanner.hasNext())
        {
            employeeValueList.add(aScanner.next());
        }

        if (!employeeValueList.isEmpty())
        {
            anEmployee.setName(employeeValueList.get(0));
            anEmployee.SetJobTitle(employeeValueList.get(1));
            anEmployee.cutCheck(new Double(employeeValueList.get(2)));
        }

    }

answered Aug 16, 2013 at 13:02

muthukumar

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Comments

Sushil Deshmukh · Accepted Answer · 2013-08-16 13:02:01Z

0

if - EmployeeInfo.txt

Angela

nurse

2000.23

in the Code
DoPayroll - class
payOneEmployee -functions line no 4

anEmployee.setName(aScanner.nextLine()); // this line will take input - Angela
anEmployee.SetJobTitle(aScanner.nextLine()); // this will take zero input because second line dont have any data
anEmployee.cutCheck(aScanner.nextDouble()); // this line take input as - nurse
//and "nurse" is not double so after reading this line at time of casting
from nurse to duble it throw java.util.InputMismatchException

answered Aug 16, 2013 at 13:02

Sushil Deshmukh

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