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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.util.regex.*;
  5. import java.lang.*;
  6. import java.io.*;
  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. // your code goes here
  14. String str = "(form_component_34==\"Yes\"||case_attribute_37==3&&case_attribute_40?has_content)";
  15. Pattern r = Pattern.compile("(?:form_component_|case_attribute_)\\d+");
  16. ArrayList<String> matches = new ArrayList<String>();
  17. Matcher m = r.matcher(str);
  18. while (m.find())
  19. {
  20. matches.add(m.group());
  21. }
  22. System.out.println(matches);
  23. }
  24. }
Success #stdin #stdout 0.1s 320256KB
stdin
Standard input is empty
stdout
[form_component_34, case_attribute_37, case_attribute_40]