Menu
Menu
DaniWeb
Log In
Sign Up
Read
Contribute
Meet
Search
Search
About 831 results for
hasnextline
- Page 1
Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dmanw100
… = new File(fileName); Scanner dataFile = new Scanner(playerFile); while(dataFile.
hasNextLine
()) [/CODE] Why would datafile…
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dmanw100
… Scanner dataFile = new Scanner(playerFile); //new Scanner dataFile while(dataFile.
hasNextLine
()) //while there is a next line { Player temp = new Player…
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
7 Years Ago
by Rafael_9
In my experience,
hasNextLine
( ) goes crazy when the Scanner is created with `new Scanner (new File(...))` and there are non-ascii characters in the file (such as á, ñ, ..). As suggested, by creating the Scanner `new Scanner (new FileInputStream(...))` the problem disappears.
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dickersonka
its not open from another application is it? also wrap a try catch around and check and make sure it is accessing it properly
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dickersonka
and is an exception caught or no?
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dmanw100
No exception is caught when this loop executes. I'm really stumped! :(
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dickersonka
just by chance, try moving the bracket after the while loop first comment, to be on the same line as the while statement also did you initialize your array thePlayers? trying taking everything out, and in the while loop just do a println on dataFile.nextLine() think there might be something with player in there possibly affecting it
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dmanw100
No those changes didn't affect it's ability to read from the file. I'm going to try changing some other pieces of code though.
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dmanw100
Ok it definitely is not finding the first line in the file. I simply removed the test for the first line and it chocked up and died a spectacular java ioexception death. The Players.txt file is in the same directory so I'm not sure why it can't find the first line.
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by dickersonka
for some reason the file doesn't start with a eof character does it? try recreating the file and make sure its closed
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by BestJewSinceJC
I'd be willing to bet that if you changed your code to this, then your code would work. I've never actually seen somebody use "File" as an argument to a Scanner, so excuse me if I'm wrong, but I don't think it should be used. File is a class that represents a File, is it not? A File and a FileInputStream are not the same thing, I don't …
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
16 Years Ago
by ~s.o.s~
> for some reason the file doesn't start with a eof character does it? EOF isn't a character, this is one of the reasons why the [ICODE]read [/ICODE]method in Java and the [ICODE]getchar[/ICODE]/[ICODE]fgetc [/ICODE]function in C returns an [ICODE]int [/ICODE]instead of a [ICODE]char[/ICODE] [hint: since char is unsigned, there would be no …
Re: Checking hasNextLine() for a file scanner
Programming
Software Development
7 Years Ago
by JamesCherrill
Interesting... A quick look at the source code for Scanner shows that the File constructor immdiately creates a FileInputStream from the file and proceeds with that, so just passing the stream rather than the file shouldn't make any difference. Problems with non-ascii chars are much more likely to be a problem with the default charset not …
Help with my GroupProgram
Programming
Software Development
13 Years Ago
by cloud02
… called intns */ public void readFile(){ int index = 0; while (reader.
hasNextLine
()){ String[] temp = reader.nextLine().split(", "); // Store the… void checkInside(int number) throws Exception { String count; if ( scan.
hasNextLine
() == false ) { count = Integer.toString(number); FileWriter out = new …
Re: Help with my GroupProgram
Programming
Software Development
13 Years Ago
by cloud02
…called intns */ public void readFile(){ int index = 0; while (reader.
hasNextLine
()){ String[] temp = reader.nextLine().split(", "); // Store … void checkInside(int number) throws Exception { String count; if ( scan.
hasNextLine
() == false ) { count = Integer.toString(number); FileWriter out = new…
Need help with the java code!
Programming
Software Development
17 Years Ago
by zantex
… { input = console.nextDouble(); // clear trailing newline from buffer if (console.
hasNextLine
()) console.nextLine(); return input; } catch (InputMismatchException e) { System.out.println…
reading from a txt file
Programming
Software Development
15 Years Ago
by polska03
…FileIO fio=new FileIO(s); while(fio.
hasNextLine
()) { if(fio.hasNextInt()==false){ throw new… not opened"); }else{ return scan.
hasNextLine
(); } }//
hasNextLine
public String getNextLine() throws Exception{ if(scan…
Stack Implementation
Programming
Software Development
14 Years Ago
by anirban007
…new FileReader("prefix.txt")); while(in.
hasNextLine
()) { prefix(in.nextLine()); } in.close();…"); in = new Scanner(fob); while(in.
hasNextLine
()) { String line = in.nextLine(); palindrome(line);…------Balanced Parenthesis check using Stack-----"); while(in.
hasNextLine
()) { String line = in.nextLine(); parenthesis(line…
Need Help With a Java Program That Will Indent Code From Another Java File
Programming
Software Development
9 Years Ago
by Brian_18
… Scanner jfile = new Scanner(new File(fileN)); while (jfile.
hasNextLine
()) { String text = jfile.nextLine(); if (text.contains("…new PrintStream(new File("words2.txt")); while (input.
hasNextLine
()) { String text = input.nextLine(); echoFixed(text, output);…
FileInput/Output Stream on JTextField
Programming
Software Development
14 Years Ago
by cathgodarve
…quot;\n"; storeAll1=storeAll1+temp1; } while(fr2.
hasNextLine
()) { String temp2=fr2.nextLine()+"\n"; …storeAll2=storeAll2+temp2; } while(fr3.
hasNextLine
()) { String temp3=fr3.nextLine()+"\n"; storeAll3…
Java - Arrays
Programming
Software Development
14 Years Ago
by saurabh2007
…]; int[] stdt; int[] answer = answerKey(); while (inScan2.
hasNextLine
()) { String id1 = inScan2.next(); ECHSid[temp] = id1…= inScan2.nextLine(); } String aa = inScan.nextLine(); while (inScan.
hasNextLine
()) { String id = inScan.next(); CitizenshipID[count] = id;…
Parsing a file for Sets and Maps
Programming
Software Development
13 Years Ago
by kweigand
…Scanner in = new Scanner(new File(filename)); while (in.
hasNextLine
()) { String agentNum = in.nextLine(); String sub = agentNum.… out = new PrintWriter("readfile.txt"); while (sc2.
hasNextLine
()) { Scanner s2 = new Scanner(sc2.next()); @SuppressWarnings("…
Need a Method That Will Split a Java File Into Lines By {, }, ;, and //
Programming
9 Years Ago
by Brian_18
…new PrintStream(new File("words2.txt")); while (input.
hasNextLine
()) { String text = input.nextLine(); echoFixed(text, output);…new PrintStream(new File("words2.txt")); while (input.
hasNextLine
()) { String text = input.nextLine(); echoFixed(text, output); …
TicTacToe equivalent with a twist using socket programming in Java
Programming
Software Development
5 Years Ago
by M_27
…private void processCommands() { while (input.
hasNextLine
()) { var command = input.nextLine(); … private void processCommands() { while (input.
hasNextLine
()) { var command = input.nextLine(); …
Hey check out my prog. It has an error can u find it?
Programming
Software Development
19 Years Ago
by buggytoast
… Scanner in = new Scanner(inFile); while (in.
hasNextLine
()) { Scanner lineScanner = new Scanner(in.nextLine());… Scanner in = new Scanner(inFile); while (in.
hasNextLine
()) { Scanner lineScanner = new Scanner(in.nextLine()); lineScanner…
Source Code that don't work?
Programming
Software Development
19 Years Ago
by buggytoast
… Scanner in = new Scanner(inFile); while (in.
hasNextLine
()) { Scanner lineScanner = new Scanner(in.nextLine());… Scanner in = new Scanner(inFile); while (in.
hasNextLine
()) { Scanner lineScanner = new Scanner(in.nextLine()); lineScanner…
Stuck: Exception Handling and reading text from file
Programming
Software Development
17 Years Ago
by LevelSix
… number of words */ public int getWordCount() { while (in.
hasNextLine
()) { for(int i = 1; i <= in.nextLine…the number of lines */ public int getLineCount() { while (in.
hasNextLine
()) { lines++; } return lines; } /** Gets the number of…
Re: Stuck: Exception Handling and reading text from file
Programming
Software Development
17 Years Ago
by LevelSix
…boolean done = false; while (!done) { if (in.
hasNextLine
() == true) { for(int i = 1; i …() { done = false; while (!done) { if(in.
hasNextLine
()) lines++; else lines = 0; } return lines; }…
Re: Stuck: Exception Handling and reading text from file
Programming
Software Development
17 Years Ago
by LevelSix
…(reader); boolean done = false; while (!done) { if (in.
hasNextLine
() == true) { lines++; while(in.
hasNextLine
()) { int j = 0; int i = 1; file = in…
Re: Stuck: Exception Handling and reading text from file
Programming
Software Development
17 Years Ago
by LevelSix
…done = false; while (!done) { while(in.
hasNextLine
()) { lines++; int j = 0; int i…num = array.length; chars += num; if(in.
hasNextLine
() == false) done = true; } } }…
1
2
3
14
Next
Last
Search
Search
Forums
Forum Index
Hardware/Software
Recommended Topics
Programming
Recommended Topics
Digital Media
Recommended Topics
Community Center
Recommended Topics
Latest Content
Newest Topics
Latest Topics
Latest Posts
Latest Comments
Top Tags
Topics Feed
Social
Top Members
Meet People
Community Functions
DaniWeb Premium
Newsletter Archive
Markdown Syntax
Community Rules
Developer APIs
Connect API
Forum API Docs
Tools
Backlink Auditor
Legal
Terms of Service
Privacy Policy
FAQ
About Us
Advertise
Contact Us
© 2025 DaniWeb® LLC