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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. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12. String str = "#Orange in Czech language mean #pomeranĨ :-)";
  13. ArrayList<String> allMatches = new ArrayList<String>();
  14. Matcher m = Pattern.compile("(?U)(#\\w+)\\b").matcher(str);
  15. while (m.find()) {
  16. allMatches.add(m.group());
  17. }
  18. System.out.println(Arrays.toString(allMatches.toArray()));
  19. }
  20. }
Success #stdin #stdout 0.13s 320576KB
stdin
Standard input is empty
stdout
[#Orange, #pomeranĨ]