Input data: java.lang.NumberFormatException: For input string: "2 "

Question

Here is my data from the text file:

21/08/12#ESE-6329#PV/5732#30 27/08/12#PEA-4567#PV/5732#3@ 11/09/12#ESE-5577#Xk/8536#2 14/09/12#PNW-1235#HY/7195#2@

And this is a code form the main method:

File orderData = new File("PurchaseOrderData.txt"); Scanner dataScan = new Scanner(orderData); while(dataScan.hasNextLine()) { String lineData = dataScan.nextLine(); Scanner lineScan = new Scanner(lineData); lineScan.useDelimiter("#"); String date = lineScan.next(); // line 259 String id = lineScan.next(); String code = lineScan.next(); String quantityPlus = lineScan.next(); if(!quantityPlus.contains("@")) management.addNewPurchaseOrder(date, id, code, Integer.parseInt(quantityPlus)); // line 267 else { quantityPlus = quantityPlus.replace("@", ""); management.addNewPurchaseOrder(date, id, code, Integer.parseInt(quantityPlus)); management.startNewMonth(); }

On the first instance of

management.addNewPurchaseOrder(date, id, code, Integer.parseInt(quantityPlus));

I get this exception:

java.lang.NumberFormatException: For input string: "2 " at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at Assignment2.MainTest.main(MainTest.java:267)

If I do:

String quantityPlus = lineScan.next(); quantityPlus = quantityPlus.replace(" ", "");

I get the following:

java.util.NoSuchElementException java.util.NoSuchElementException at java.util.Scanner.throwFor(Scanner.java:862) at java.util.Scanner.next(Scanner.java:1371) at Assignment2.MainTest.main(MainTest.java:259)

MainTest.java:259 - String date = lineScan.next();

I've tried to use nextInt() as well, but the result is the same. What is wrong there?

Thanks a lot!

is there a chance that you have some hidden symbol after 2 or 2@ in lines 3 or 4 respectively? — Steven Pauk
– Steven Pauk, Commented Mar 28, 2015 at 19:17
@Sergey Pauk Yes, thanks, found it and cleared! But now there is: NoSuchElementException mentioned above... — ArthurV
– ArthurV, Commented Mar 28, 2015 at 19:23
@Sergey Pauk I've got quite a lot of lines of data, it was just an example, but the structure is the same — ArthurV
– ArthurV, Commented Mar 28, 2015 at 19:24

dvhh · Accepted Answer · 2015-03-28 19:26:22Z

1

MainTest.java:259 - String date = lineScan.next(); You should check before if the line is not empty this might be why the scanner is throwing an exception

answered Mar 28, 2015 at 19:26

dvhh

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2 Comments

ArthurV Over a year ago

I seems that is helped! Thank you! But is that, if I read from a String, which has the data exactly for the number of times I mentioned .next()?

dvhh Over a year ago

If you are using a while loop there the loop is called as long as there is a new line char at the end of the current line, you might also need to catch this exception in case the line is in invalid format

Steven Pauk · Accepted Answer · 2015-03-28 19:32:59Z

Regarding NoSuchElementException - one of your lines ends prematurely (most likely there's no data after the last #). As you can see from specification this exception is thrown when:

@throws NoSuchElementException if no more tokens are available

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