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PONoSuchElement exception when using Scanner
 

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  1. PONoSuchElement exception when using Scanner
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    <p>I'm trying to get input from the console a second time within the program using <code>Scanner</code>s but when calling a second <code>Scanner</code> in another method it’s coming up with NoSuchElement exception. </p> <p>If I remove <code>startMenu()</code> from running <code>fileReader()</code> it works, however for some reason after running it throws the exception. </p> <pre><code> public class Garden { public static final Garden GARDEN = new Garden(); //variable declartaions removed public static void main(String[] args) { if (null != args &amp;&amp; 0 &lt; args.length) { GARDEN.fileName = args[0].trim(); } if (GARDEN.fileName != null) { GARDEN.fileReader(GARDEN.fileName); } else { GARDEN.fileReader(); } GARDEN.startMenu(); int mainI = 0; while (mainI != 1000000) { try { Thread.sleep(0); } catch (InterruptedException e) { } GARDEN.daysWeather(); GARDEN.anotherDay(); mainI++; } } protected void fileReader() { // asks for file name for config file System.out.println("Enter File Name Please"); Scanner cmdReader = null; String cmdInput = null; try { cmdReader = new Scanner(System.in); cmdInput = cmdReader.nextLine(); } catch (NoSuchElementException noSuchElement) { noSuchElement.printStackTrace(); fileReader(); //throwing error here } //code removed } protected void startMenu() {// modified code from ATM lab (week2) int selected = 0; //code removed Scanner climateScanner = new Scanner(System.in); System.out.println("Select a number 1-4"); selected = climateScanner.nextInt(); switch (selected) { case 1: // semiarid weatherType = 10; //10% chance to rain climateScanner.close(); break; case 2: // arid weatherType = 20; //5% chance to rain climateScanner.close(); break; case 3: weatherType = 50; //2% chance to rain tropicalWeather = true; climateScanner.close(); break; case 4: weatherType = 20;//5% chance to rain storming = true; climateScanner.close(); break; default: System.out.println("Invalid Input try again"); startMenu(); //using Recursion to ask for input again break; } //code removed } } </code></pre>
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    1. USuser1642671
    1. USuser1642671
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    1. This table or related slice is empty.
    1. COWhat is `GARDEN`?
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      1. USDuncan Jones
    2. COGARDEN is the singleton created didn't think this is the problem as it works with GARDEN.fileReader() when GARDEN.startMenu() isnt called
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      1. PONoSuchElement exception when using Scanner
      1. USuser1642671
 

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