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  1. import java.util.*;
  2. import java.util.regex.*;
  3.  
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		String s = "Ca(OH)2";
  9. 		Pattern p = Pattern.compile("\\([A-Za-z0-9]+\\)[0-9]*|[A-Za-z0-9]+");
  10. 	    Matcher m = p.matcher(s);
  11. 	    List<String> res = new ArrayList<>();
  12. 	    while(m.find()) {
  13. 	    	res.add(m.group());
  14. 	    }
  15. 	    System.out.println(res);
  16. 	}
  17. }
Success #stdin #stdout 0.09s 51780KB
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Standard input is empty
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[Ca, (OH)2]
https://ideone.com/TfrKNk
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
public

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