How to obtain elements from String separated by commas Java

Question

I'm trying to obtain the values of a String, which is separated by commas.

something like this: String str = "item1, item2,0 item3, item4, 0 item5 ...." This strange String it's because I have a KML that I take the coordinates of a polygon parsing the kml. Example: <coordinates> 2.18954459419779,41.40492402705473,0 2.189651379989959,41.40491712193686,0 2.189993453581252,41.40464878075789, ....

What i done to separate it, is:

 List<String> items = Arrays.asList(str.split("\\s*,\\s*"));

But I don't know how to make that this 0 disappears o put a comma between the 0 and the next number.

How can I do it?

Edit: Solution

Testing the answers, what it works perfect to my problem is this solution:

String[] str_solution = str.split("\\s*,0?\\s*");

Rodrigo Sasaki · Accepted Answer · 2013-04-15 15:24:26Z

3

Just add the optional zero to the split pattern

"\\s*,0?\\s*"

If it's there it will be splitted with the rest, if not it'll just be ignored.

edited Apr 15, 2013 at 15:24

answered Apr 15, 2013 at 15:00

Rodrigo Sasaki

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2 Comments

Rodrigo Sasaki Over a year ago

Yeah, that should consider even more cases, nice catch

Shudy Over a year ago

Thats Perfect!, it separates all "double" numbers, and ignore the 0's . Lot of thanks to both ;)

Luis Galdenstein · Accepted Answer · 2013-04-15 15:24:30Z

1

public class Test {
    public static void main(String[] args) {
        String data= "2.18954459419779,41.40492402705473,0 2.189651379989959,41.40491712193686,0 2.189993453581252,41.40464878075789,43.9919";
        String[] dtx = data.split(",");
        for (int j = 0; j < dtx.length; j++) {
            if(dtx[j].indexOf(' ')>=0) dtx[j] = dtx[j].split(" ")[1];   
            System.out.println("data["+j+"]="+dtx[j]);
        }
    }

}

Result

data[0]=2.18954459419779
data[1]=41.40492402705473
data[2]=2.189651379989959
data[3]=41.40491712193686
data[4]=2.189993453581252
data[5]=41.40464878075789
data[6]=43.9919

answered Apr 15, 2013 at 15:24

Luis Galdenstein

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Comments

Lightness Races in Orbit · Accepted Answer · 2013-04-16 09:26:23Z

1

Please use the following code

String a = "item1, item2,0 item3, item4, 0 item5";
String[] arr = a.split(",|,0|, 0|, 0 |")

This will match ',0' ', 0' and ' , 0 ' and will split accordingly.

edited Apr 16, 2013 at 9:26

Lightness Races in Orbit

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answered Apr 15, 2013 at 15:08

Amit Sharma

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Comments

user2283094 · Accepted Answer · 2013-04-15 15:10:07Z

0

use the method split from the String

an example that i have tested:

  String contenido = "item1,item2,item3";
    String[] palabras;

    palabras = contenido.split(",");

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

answered Apr 15, 2013 at 15:10

user2283094

1

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