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POError: java.util.NoSuchElementException - Scanner not behaving as desired
 

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  1. POError: java.util.NoSuchElementException - Scanner not behaving as desired
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    <p>Scanner returning NoSuch Element Exception error. Could you explain why is this happening.</p> <p>The Scanner now passes and runs fine but it didn't take the nextLine input from the second Scanner call. This may be a little tweak but could someone point out what the mistake is. </p> <pre><code>public class JavaHW1_1 { private static Scanner userInput = new Scanner(System.in); public static void main(String[] args) throws IOException { String pattern ; String fileName = null; // Method to manage user inputs fileName = userInputFileName(userInput); pattern = userInputPattern(userInput); // To find the pattern in the file // findPattern(); } private static String userInputPattern(Scanner userInput) { String pattern = "JollyGood"; System.out.println(". Please enter a pattern to find in the file"); while(userInput.hasNextLine()){ pattern = userInput.nextLine(); System.out.println("The pattern to be searched: "+ pattern); } userInput.close(); return pattern; } private static String userInputFileName(Scanner userInput) throws IOException { String path = "./src"; String files, fileName; File folder = new File(path); File[] listOfFiles = folder.listFiles(); System.out.println("Please input the desired file name:\n"); System.out.println("Some suggestions:\n"); for (int i = 0; i &lt; listOfFiles.length; i++) { if (listOfFiles[i].isFile() &amp;&amp; listOfFiles[i].getName().toLowerCase().endsWith(".txt")) { files = listOfFiles[i].getName(); System.out.println(files); } } int userAttempt = 0; do{ fileName = userInput.nextLine(); if(fileName.toLowerCase().endsWith(".txt")){ System.out.println("The file name entered is in correct format"); File file = new File("./src",fileName); try { file.createNewFile(); System.out.println("File is created. Please enter text to be written in the file. End the content with \"eof\""); InputOutput(file.getName()); } catch (IOException e) { e.printStackTrace(); } userAttempt = 10; } else {System.out.println("Please enter correct format file with .txt extension"); userAttempt++;} }while (userAttempt &lt;10); return fileName; } private static void InputOutput(String fName) throws IOException { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter out = null; try { out = new BufferedWriter(new FileWriter("./src/" + fName)); String inputLine = null; do { inputLine=in.readLine(); out.write(inputLine); out.newLine(); } while (!inputLine.equalsIgnoreCase("aaa")); System.out.print("Write Successful"); } catch(IOException e1) { System.out.println("Error during reading/writing"); } finally { out.close(); in.close(); } } private static void findPattern() { // TODO Auto-generated method stub } } </code></pre>
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      1. POError: java.util.NoSuchElementException - Scanner not behaving as desired
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    1. COPlease post the stacktrace.
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      1. POError: java.util.NoSuchElementException - Scanner not behaving as desired
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    2. COcheck this SO... http://stackoverflow.com/questions/15443383/scanner-nosuchelementexception are you opening the Scanner in another method?
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      1. POError: java.util.NoSuchElementException - Scanner not behaving as desired
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    3. COpossible duplicate of http://stackoverflow.com/questions/7209110/java-util-nosuchelementexception-no-line-found
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      1. POError: java.util.NoSuchElementException - Scanner not behaving as desired
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