split string and get the value using regex from a complicated string

Question

I have a string like this {"product_tags":"yin_yang,yin yang"}. what I want to do is just avoid everything else other than yin yang. There is two strings but I just want the first one.

Note that in some cases even if the second string is not available I want to get the same result. And that string might change so it is not necessary that the string will be always yin_yang sometimes it can be motorbike or anything else.

please note in some cases even if the second string is not available i want to get the same result. and that string might change so it is not necessary that the string will be always yin_yang sometimes it can be motorbike or anything else. — sarath
– sarath, Commented Feb 28, 2014 at 6:42
This is not clear, you want some method to transform {"product_tags":"xxxxxxxx,yin yang"} into "xxxxxxxx"? — user180100
– user180100, Commented Feb 28, 2014 at 6:45
and this string can be {"product_tags":"yin_yang"} as well? — Sanjeev
– Sanjeev, Commented Feb 28, 2014 at 6:55

Nambi · Accepted Answer · 2014-02-28 07:07:28Z

1

It Look like JSON String Use the JSONParser in java

JSONObject jobject=new JSONObject(STRING);
String value=jobject.getString("product_tags");

EDITED

Using REGEX

 String json="{\"product_tags\":\"yin_yang,yin yang\"}";
    json=json.replaceAll("([{}]+)", "");
    String value[]=json.split(":");
    System.out.print(value[1]);

edited Feb 28, 2014 at 7:07

answered Feb 28, 2014 at 6:44

Nambi

12k4 gold badges40 silver badges50 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

sarath Over a year ago

sorry mate its not a json string and its not a json array.. its just a value inside one column in a database. and i want to get that value from database but need to avoid all other strings other than the one coming after :

Ankit Kumar Over a year ago

@sarath yes, that' ok. the new JSONObject(<your string>) will create the JSONObject() to typecast it.

Nambi Over a year ago

@sarath you can get like that value using this code.regex may not be accurate.

Nambi Over a year ago

@sarath I have Updated my answer using regex

Rishi Dwivedi · Accepted Answer · 2014-02-28 10:23:10Z

0

You can use StringTokenizer to parse your string

String str ="{\"product_tags\":\"yin_yang,yin yang\"}";
StringTokenizer to = new StringTokenizer(str,":}");
while(to.hasMoreTokens()){
    String firstString = (String) to.nextElement();
    String secondString = (String) to.nextElement();
System.out.print(secondString);
}

answered Feb 28, 2014 at 10:23

Rishi Dwivedi

9385 silver badges19 bronze badges

1 Comment

Shekhar Khairnar Over a year ago

secondString is not accessible out size the while loop;

Collectives™ on Stack Overflow

split string and get the value using regex from a complicated string

2 Answers 2

4 Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related