Scanner No Line Found Exception

Question

I am getting the following exception.

java.util.NoSuchElementException: No line found

I got this error while writing a larger program which needed to read from a text file, and so decided to do a test.

Scanner scan = new Scanner(new File("restrictions.txt");
String s1 = scan.nextLine();
System.out.println(s1);

And I still get the exception. I have a text file in the same folder as the class called restrictions.txt which has text in it. What am I doing wrong?

Answer 1

new File("restrictions.txt") will look for the file in the "Start dir" of your app - if you're using Eclipse, it's probably the root of your project.

To open the file next to your class, you can use the Scanner constructor which accepts an InputStream that you get by

YourClass.class.getResourceAsStream("restrictions.txt")

Answer 2

You should use if(in.hasNextLine()) before calling in.nextLine(). Otherwise for last line it will thrown Line not found exception.

Answer 3

Javadoc for Scanner

Do you need to specify a line ending so it knows what a line is?