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  1. import java.util.*;
  2. import java.util.regex.*;
  3. import java.lang.*;
  4. import java.io.*;
  5.  
  6. class Ideone
  7. {
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		String line = "A,,B";
  11. 		ArrayList<String> tokens = new ArrayList<String>();
  12. 		String regex = "\"([^\"]*)\"|[^,]+|(?<=,)(?=,)";
  13. 		Matcher m = Pattern.compile(regex).matcher(line);
  14. 		while (m.find()) {
  15. 		    if (m.group(1) != null) {
  16. 		        tokens.add(m.group(1));
  17. 		    } 
  18. 		    else {
  19. 		        tokens.add(m.group(0));
  20. 		    }
  21. 		}
  22. 		System.out.println(tokens);
  23. 	}
  24. }
  25.  
Success #stdin #stdout 0.04s 711168KB
comments (?)
stdin 
Standard input is empty
stdout 
[A, , B]
https://ideone.com/LOT10O
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
secret

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