How can i extract a specific item with split function

Question

It's possible to extract a specific item in String with split function

example:

offers/BESTOFFERS/FRTNE/FRPAR/2015-01-05?passengers=STANDARD:1&returnDate=2015-01-12&maxVia=0&withThac=false

i want to extract just returnDate

ouptut why i want:

2015-01-12

OR

i want to extract just passengers

ouptut why i want:

STANDARD:1

SO is not to write code for you.. Show us what you have tried, where you failed. what error you got. — mtk, Jan 06 '15 at 11:12
possible duplicate of [How to extract parameters from a given url](http://stackoverflow.com/questions/5902090/how-to-extract-parameters-from-a-given-url) — RealSkeptic, Jan 06 '15 at 11:13

score 1 · Accepted Answer · answered Jan 06 '15 at 11:26

If you really need to stick on the split method you could solve it for example like this

String str = "offers/BESTOFFERS/FRTNE/FRPAR/2015-01-05?passengers=STANDARD:1&returnDate=2015-01-12&maxVia=0&withThac=false";
int paramDelim = str.indexOf('?');
String parmeters = str.substring(paramDelim + 1, str.length());
String[] parts = parmeters.split("[&=]");
System.out.println("parts = " + Arrays.toString(parts));

parts contain the paramer names (odd entries) and the values (even entries).

If you don't need to stick on the split method try one of the proposed URL parser solutions.

score 0 · Answer 2 · answered Jan 06 '15 at 18:35

You can also try the below approach of using HashMap

void populateMap()
{
    Map<String, String> myMap = new HashMap<String, String>();
    String uri = "offers/BESTOFFERS/FRTNE/FRPAR/2015-01-05?passengers=STANDARD:1&returnDate=2015-01-12&maxVia=0&withThac=false";
    int len = uri.indexOf('?');
    String input = str.substring(len + 1, uri.length());
    for(String retVal : input.split("&")
    {
        String[] innerRet = retVal.split(":");
        myMap.put(innerRet[0],innerRet[1]);
    }
}

String retValue (String key)
{
    return myMap.get(key);
}

score -1 · Answer 3 · answered Jan 06 '15 at 11:13

-1

    String str = "offers/BESTOFFERS/FRTNE/FRPAR/2015-01-05?passengers=STANDARD:1&returnDate=2015-01-12&maxVia=0&withThac=false";

    String returnDate = str.split("&")[1].replaceAll
    ("returnDate=","").trim();

    String passengers= str.split("?")[1].split("&")[0].replaceAll
    ("passengers=","").trim();

answered Jan 06 '15 at 11:13

Manjunath D R

371
2
8

Any reason why you've chosen not to recommend a standard URL parser? – Bathsheba Jan 06 '15 at 11:17
@Bathsheba : User has asked to achieve it using String split() function. – Manjunath D R Jan 06 '15 at 11:19
2

Let's hope he never changes the order of these name/value-pairs. – Tom Jan 06 '15 at 11:19
True, but you'd be wise to advise against it. – Bathsheba Jan 06 '15 at 11:27

How can i extract a specific item with split function

3 Answers3