Thread: Problem with Scanner

So I have a text file which is 47 kb big, it includes database information.

Basically I have a problem the scanner only seems to output up to a random line and then completely stop.

Scanner x = null;

try {
 x = new Scanner(new File ("database.txt"));
}
catch (FileNotFoundException e){
System.err.println("File does not exsit");
}
 
while(x.hasNextLine) {
String contentsOfFile = x.nextLine();
System.out.println(contentsOfFile);
 
}
 
x.close();

It seems to only print out up till line 351 and then stop.

Anybody know what is going on here?

I'd hazard a guess to say that there is some funky encoding in the text file that is messing around with the Scanner. Try specifying the charset to something like UTF-8 and see if that helps:

x = new Scanner( new File ("database.txt"), "UTF-8" );

That made it alot better, but still. I added a counter, notepad++ says there is 998 lines and the counter says there is 610 lines, 300 lines of the text file is missing! So frustrating!

Drop the file in Pastebin. Whatever is going on is an issue with the text file, not the code.

database.txt - Pastebin.com

Thanks for helping man, appreciate it!

Well I saved the file you shared and made a few modifications to your code (just sanity stuff, nothing really changed)

		Scanner scanner;
		int lineNumber = 0;
 
		try {
			scanner = new Scanner(new File("database.txt"));
 
			while (scanner.hasNextLine()) {
				String line = scanner.nextLine();
				System.out.println(lineNumber + ": " + line);
				lineNumber++;
			}
 
			scanner.close();
 
		} catch (FileNotFoundException e) {
			System.err.println("File does not exsit");
		}

and it picked up all 997 lines.

Try copying the contents of the file into a new, fresh text file (just use plain old notepad). This is just a weird edge case of character encoding gone wrong.

Just out of curiosity what operating system are you running? 32-bit/64-bit?

--- Update ---

Wow that is super weird, I downloaded the file from pastebin that I uploaded and then slammed it into the package folder and it printed all 997 lines.. that is so weird! Never ever opening that file again! That's man, you're superb!

Glad to help.

Happy coding