CODEWITHSUNDEEP
javaregexsplit
Shamik
Shamik

Reputation: 1731

How to split the following string in java?

I'm trying to split the following string primarily based on whitespace. Please refer to the following example

Name:"John Adam"  languge:"english"  Date:" August 2011"

I need to split the text based on each parameter. For e.g.

Name:"John Adam"

languge:"english"

Date:" August 2011"

I'm not able to construct the right regex for this scenario.

Any pointers will be appreciated.

-Thanks

Upvotes: 0

Views: 277

Answers (5)

El3ctr0n1c4
El3ctr0n1c4

Reputation: 400

String ourStr = "Name:\"John Adam\"  languge:\"english\"  Date:\" August 2011\"";

String[] newStr = ourStr.split(" ");

for(int i=0;i<newStr.length;i++) {
   System.out.println(newStr[i] + "\n");
}

Output:

Name:"John Adam"

languge:"english"

Date:" August 2011"

Upvotes: 0

Raykud
Raykud

Reputation: 2484

you can use the class StringTokenizer.. so to split something with whitespaces you could do something like:

String name=" Hello world 2011";
    StringTokenizer tokens=new StringTokenizer(name);
    while(tokens.hasMoreTokens()){
            System.out.println(tokens.nextToken());
        }

and that should split it to:

Hello
world
2011

this little tutorial could help you: http://www.cstutoringcenter.com/tutorials/java/java5.php

Upvotes: 1

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79838

It might be simpler not to use a regular expression. Just have a loop that looks for a colon, then for a double-quote, then another double-quote, then for whitespace. (OK, use a regular expression for the whitespace bit). As the loop proceeds, you'll get a String for the key, and a String for the value. You'd break the loop as soon as you fail to find the character that you're looking for.

Comment on this answer if it's not clear how to do this, and I'll post some code. But I think I've given you enough to get started.

Upvotes: 0

driangle
driangle

Reputation: 11779

    String input = "Name:\"John Adam\"  languge:\"english\"  Date:\" August 2011\"";
    // You can define this pattern statically.
    Pattern pattern = Pattern.compile("(.*?\\:\\\".*?\\\")\\s*");
    Matcher matcher = pattern.matcher(input);
    List<String> keyValues = new LinkedList<String>();
    while(matcher.find()){
        keyValues.add(matcher.group());
    }

    //keyValues == [Name:"John Adam"  , languge:"english"  , Date:" August 2011"]

Upvotes: 4

oldingn
oldingn

Reputation: 86

I would look first at using String.split() in two passes: the first splitting on a space character, the second on double-quotes.

Upvotes: 0

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