Scanner NoSuchElementException when calling .next() method

Question

In Java, I\'m getting this Exception:

Exception in thread \"main\" java.util.NoSuchElementException
    at java.util.Scanner.throwFor(Unknown Source)
    at          


        

Answer 1

The Scanner.next() method will move the internal iterator along one. Your code should be:

public static void readFile(String path) {
    Scanner file = null;
    try {
        file = new Scanner(new File (path));
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } finally {
        while (file.hasNext()) {
            String next = file.next();
            for(int counter = 0 ; counter < next.length(); counter ++) {
                System.out.println(next.charAt(counter));    
            }
        }
    }
}