Split string by character numeric

Question

I am using below program to split my string.

public static void main(String[] args) {
    String test = "A1=CA2=BOA2=RA4=O";
    String data[] = test.split("[A-a]\\d{1,100}=");

    for (String str : data) {
      System.out.println("Split data:"+str);
    }      
}

//Output 
  Split data:
  Split data:C
  Split data:BO
  Split data:R
  Split data:O

//But I want output something like below :
  Split data:A1=C
  Split data:A2=BO
  Split data:A2=R
  Split data:A4=O

How do I split my string to get output in the above way

Maybe this could work: http://stackoverflow.com/questions/12001953/javascript-and-regex-split-string-and-keep-the-separator — pdem, Feb 03 '16 at 11:09
Why don't you try like this? A1=C,A2=BO,A3=R,A4=O And split by (',') — Noor Nawaz, Feb 03 '16 at 11:09

Eng.Fouad · Accepted Answer · 2016-02-03T11:25:49.260

6

Use the positive look-ahead assertion ((?=)):

test.split("(?=[A-Z]\\d{1,100}=)");

This regex will match any zero-length string that is followed by (Capital letter), followed by a number consists of [1-100] digits, followed by = sign.

Output:

Split data:A1=C
Split data:A2=BO
Split data:A2=R
Split data:A4=O

edited Feb 03 '16 at 11:25

answered Feb 03 '16 at 11:11

Eng.Fouad

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Can u explain this answer please – shraddha bhardwaj Feb 03 '16 at 11:14
`=[A-Z]` is not required. right? all things works with just adding `?=` what it will do? when to add or when not to add? – bNd Feb 03 '16 at 11:16
@Eng.Fouad Your solution is working. I need a another help. After split I got "A1=C" this type of string. Now want to extract 1 from A1, 2 from A2 etc. How I get that? – Shiladittya Chakraborty Feb 03 '16 at 11:33
@ShiladittyaChakraborty `s = s.substring(1, s.indexOf("="));`. – Eng.Fouad Feb 03 '16 at 11:38

Split string by character numeric

1 Answers1