Split String based upon the Pattern

[pavan528]

Hi all,
I have a Text file with following Entries.
(arule,12),(brule,21),(zrule,70),(drule,25),(erule ,10)
(frule,3)
(grule,20),(srule,100)

I need to read a line at a time and split them as separate ordered pairs into another Array( i mean a[0]=(arule,12) and a[1]=(brule,21) and so on). I am not sure how this could be done in java as I am very new to it. please share any of the idea of how to do it.

[arieltal]

look in the String api, methods like indexof, substring..

[Tolls]

String.split().
The API is your friend.

[sabre150]

String.split().
The API is your friend.

In the same way that a car owner's manual shows one how to drive a car.

For this problem the OP will need to understand the concepts of look-behind and look-ahead and will almost certainly need to go well beyond the Javadoc. He will need to consult a tutorial such as Lesson: Regular Expressions (The Java™ Tutorials > Essential Classes) and/or Regular Expression Tutorial - Learn How to Use Regular Expressions .

[Tolls]

For some reason I thought there was a link to the tutorial in the Pattern API (referenced from the split() Javadoc).
But apparently there isn't.

Still, research is a good skill to learn...that's my excuse, and I'm sticking to it.

[pavan528]

Hi Tolls,
I can use String.Split method to count the number of ',' in the line and enter the element in the array at each even occurence of the character. But I feel there is a better approach to this using regular expression but I am not sure how to build the regular expression for this combined characters ")," so that I can ebnter the values upto that occurence. if any idea of building the regex for this combination of characters. please let me know the direction to that. Thanks a lot for your time.... and replies...

[Tolls]

Well yes, split uses a regex, which is why sabre150 pointed you to a couple of regex tutorials.
I'm not a regex person by any means, but I would recommend going through those tutorials and trying to piece one together.
You can Google for regex testers, which will allow you to experiment against a sample of one of your lines.

Indeed if you are using Eclipse there is at least one plugin to do the same thing, the one I have is QuickREx.

[gowthamgutha]

Use split("pattern") in String class.

See [Blog spam removed]

[Tolls]

That has already been pointed out in this thread.
Is there really any need to add to what's been said?