Scanner Doubt!

[palla sridhar]

Hi Ranchers!
Please consider the following code.

 import java.util.Scanner;
 
public class Scan2 {
 
/**
 * @param args
 */
public static void main(String[] args) {
// TODO Auto-generated method stub
String input = "1fish 2fish red fish blue fish";
Scanner s = new Scanner(input).useDelimiter("fish\\s*");
System.out.println(s.nextInt());
System.out.println(s.nextInt());
System.out.println(s.next());
System.out.println(s.next());
s.close();
}
 
} 

and the output is:

1
2
red 
blue 

Why in the output , "red" and "blue" are printed, if they do not match the delimiter pattern??

[Jim Yingst]

Because next() doesn't show you the delimiters - it shows you the things between the delimiters. That's the point.

[palla sridhar]

That is OK. But the delimiter pattern says, "fish" followed by 1 or more spaces. But after "red" and "blue" there is a space, fish, space which does not represent the delimiter pattern. Then why do they get printed in the output. That's my question.

Thanks

[Rob Spoor]

It's not "red" and "blue" that's being printed, but "red " and "blue " (note the extra space). When you print another character after the strings, like |, you'll see the extra space.

[palla sridhar]

Thanks All!
I got it..

Bye