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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.util.regex.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		int i = 0;
  14. 		String[] toParse = {",1", ".1", "1", "10", "10,5", "333,5", "5,555", "10.50", "blabla 10.5 blabla"};
  15. 		Pattern pattern = Pattern.compile("(?<![\\d,.])(\\d{1,2})(?:[.,](\\d{1,2}))?(?![\\d,.])");
  16.  
  17. 		for (String str : toParse) {
  18. 			Matcher matcher = pattern.matcher(str);
  19. 			if (matcher.find()) {
  20. 				String ret = null;
  21. 				if (matcher.group(2) == null || matcher.group(2).isEmpty()) {
  22. 					ret = matcher.group(1);
  23. 				} else if (matcher.group(1) != null) {
  24. 					ret = matcher.group(1) + "," + matcher.group(2);
  25. 				}
  26. 				System.out.println(i + ": " + ret);
  27. 			}
  28. 			i++;
  29. 		}
  30. 	}
  31. }
Success #stdin #stdout 0.1s 320320KB
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stdin
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Standard input is empty
stdout
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2: 1
3: 10
4: 10,5
7: 10,50
8: 10,5
https://ideone.com/sszRNx
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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