Split() questions

Question

I have tried to read regular expression (regexp) tutorials but I don`t really see how to do what I want. What I want is to have "One" printed above "two" and that printed above "three" without doing System.out.println(temp.trim()); in the for-each loop. Firstly, how do I use *?* versus *|* ? Secondly, I know that the argument is a regular expression and that I must use regexp to do what I want but I am not getting it. The results I get are "One" above whitespace followed by "two" then that on top of "three".
public class SplitTokenizingClass
    public static void main(String[] args)
        String str = "One,           two,three";
        for(String temp: str.split(",|,\\s")) // also why doesn't split(",").trim() work for example? (generally speaking)
            System.out.println(temp);
}Any input would be greatly appreciated!
Thanks in advance!

Answer 1

s3a wrote:
Okay, I see. But, just to make sure that I understand the terminology: +, |, *, and ? (without the commas) are regexp quantifiers instead of java operators?
Edit: Actually, | is NOT a quantifier? Correct, only &#43;, &#42;, ?, {m}, {m,} and {m,n} +(where m and n are numbers and m <= n)+ are quantifiers.
s3a wrote:
Can someone please elaborate on the terminologies here?Sure:
A*   // matches zero or more 'A's
A|B  // matches either 'A' or 'B'
A+   // matches one or more 'A's
A?   // matches 'A' once or none at allNote that the '?' placed directly after a quantifier, it has a different meaning. See: [http://www.regular-expressions.info/repeat.html] for more details about that.