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POjava.util.NoSuchElementException error, looked for possible reasons, still can't fix it
primarykey
Id
19711841
data
AcceptedAnswerId
19712509
AnswerCount
1
ClosedDate
CommentCount
9
CommunityOwnedDate
CreationDate
2013-10-31T16:26:51.780
FavoriteCount
0
LastActivityDate
2013-11-26T10:16:34.260
LastEditDate
2013-10-31T16:42:32.983
LastEditorUserId
2055998
OwnerUserId
2942227
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0
PostTypeId
1
Score
1
ViewCount
10012
LastEditorDisplayName
text
Body
I am getting java.util.NoSuchElementException error. We get this error for the following reasons. <ol> <li>If we don't check if the file has next line before reading it, then it throws exception after reading last line since it is trying to read a line which doesn't exist.</li> <li>Format of the file is messed up</li> </ol> I think that the format of the file I m using is correct and I am also checking for next line before reading it but I am still getting the error. When I debug it using print statement, it prints all the line and throws <code>java.util.NoSuchElementException</code> error after reading last line. Please help me out Here is the code : <pre><code> public static void InterpretMessageFromFile() throws FileNotFoundException{ File inputfile = new File("filepath"); Scanner reader = new Scanner(inputfile); try { while (reader.hasNextLine()) { String MessageType = reader.next(); int IsAdd = MessageType.compareToIgnoreCase("A"); int IsCancel = MessageType.compareToIgnoreCase("X"); int IsDelete = MessageType.compareToIgnoreCase("D"); int IsExecute = MessageType.compareToIgnoreCase("E"); int IsReplace = MessageType.compareToIgnoreCase("U"); //if the type of order is add order to existing Order Book if (IsAdd == 0) { String retrieve_ts = reader.next(); int ts = Integer.parseInt(retrieve_ts); String retrieve_id = reader.next(); int id = Integer.parseInt(retrieve_id); String or_side = reader.next(); String retrieve_share = reader.next(); int share = Integer.parseInt(retrieve_share); String retrieve_price = reader.next(); int price = Integer.parseInt(retrieve_price); System.out.println("Add Order : Id is " + id ); AddOrderToExistingBook.AddNewOrder(id, ts, or_side, share, price); } //if it is cancel order if (IsCancel == 0){ String retrieve_ts = reader.next(); int ts = Integer.parseInt(retrieve_ts); String retrieve_id = reader.next(); int id = Integer.parseInt(retrieve_id); System.out.println("Cancel Order : Id is " + id + " time stamp is : " + ts ); CancelOrder.CancelPartOfOrder(id, ts); } } } } finally { reader.close(); } } </code></pre> Exception (copied from comments): <blockquote> Exception in thread "main" java.util.NoSuchElementException at java.util.Scanner.throwFor(Scanner.java:907) at java.util.Scanner.next(Scanner.java:1416) at OrderBook.InterpretOrderBookUpdateMessage.InterpretMessageFromFile(InterpretOrde‌rBookUpdateMessage.java:20) at OrderBook.MainMethod.main(MainMethod.java:50) </blockquote>
Tags
<java><nosuchelementexception>
Title
java.util.NoSuchElementException error, looked for possible reasons, still can't fix it
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USPM 77-1
UserOwnerUserId
1. USuser2942227
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
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 PostPostId
 POjava.util.NoSuchElementException error, looked for possible reasons, still can't fix it
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTApproveEditSuggestion
CommentsPostId

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