about String.split execution

[susana miranda]

Hi, I have the following code:

  
public class TestSplit{
	public static void main(String args[]){
	String[] tokens = args[0].split(args[1]);
	System.out.println("# tokens: "+ tokens.length);
	for (String s: tokens){
	System.out.println("- "+s);	
	}
	System.out.println("");
	}
}  

Here is the question, at time execution I get this:
%java TestSplit "15750 7632546 554 5858 648-7428 122%6756" "\d\d\d(-\s)?\d\d\d\d"
# tokens: 2
- 15750
- 554 5858 648-7428 122%6756

I was expecting this:

# tokens: 4
- >15750 <
- > <
- > <
- > 122%6756<

Why does this happen?

[Henry Wong]

"-\s" means a minus followed by a whitespace -- not a minus or a whitespace.

Henry

[susana miranda]

Yes, my mistake! :S

I tried with:
java TestSplit "15750 7632546 554 5858 648-7428 122%6756" "\d\d\d(-)?(\s)?\d\d\d\d\s"

and I got my result:
# tokens: 4
>15750 <
><
><
>122%6756<

Thaks a lot!

I hope not having this kind of mistakes on the exam.