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Why does this give a no such element exception?

Posted on 2007-12-03
3
1,033 Views
Last Modified: 2012-06-21
I'm not sure why this is giving a noSuchElementException. I've been starring at it forever and can't figure it out.


Input File

Blue             Gold            500
Gold             Red             300
Magenta          Yellow          438
Blue             Yellow          531
Magenta          Blue            865
Red              Purple          765
Blue             Purple          387
Brown            Magenta         1100
Brown            Blue            435
Gold             Silver          654
Gold             Purple          186


Code

package pipelines;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.NoSuchElementException;
import java.util.Scanner;

public class MainClass
{
      public static  void main(String[] args) throws FileNotFoundException, NoSuchElementException
      {
            String filename = "blackgold.txt";
            Scanner scan = new Scanner(new File(filename));
            
            while(scan.hasNextLine())
            {
                  String mine1 = scan.next();
                  String mine2 = scan.next();
                  int distance = scan.nextInt();
                  
                  System.out.println(mine1 + " " + mine2 + " " + distance);
            }
            scan.close();
      }
}
0
Comment
Question by:toymachiner62
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3 Comments
 
LVL 26

Accepted Solution

by:
ksivananth earned 125 total points
ID: 20401245
>>String mine1 = scan.next();
                  String mine2 = scan.next();
                  int distance = scan.nextInt();
>>

change to,

String mine1 = scan.hasNext() ? scan.next() : "";
String mine2=scan.hasNext()? scan.next() : "";
int distance = scan.hasNextInt()?scan.nextInt():0;
0
 
LVL 9

Expert Comment

by:ysnky
ID: 20401248
you dont need NoSuchElementException, you just need FileNotFoundException
0
 
LVL 92

Expert Comment

by:objects
ID: 20401249
u need to cvall nextLine()
0

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