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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.util.regex.Matcher;
  5. import java.util.regex.Pattern;
  6.  
  7. class Ideone
  8. {
  9. 	public static void main (String[] args) throws java.lang.Exception
  10. 	{
  11. 		String regex = "^(?:[ewns]?[0-9]+|\\d+[ewns])$";
  12. 		String string = "w234\n"
  13. 			 + "W234\n"
  14. 			 + "E234\n"
  15. 			 + "234w\n"
  16. 			 + "234\n\n"
  17. 			 + "w234w\n"
  18. 			 + "2w34\n"
  19. 			 + "ww234\n"
  20. 			 + "we234\n"
  21. 			 + "w234e\n"
  22. 			 + "w";
  23.  
  24. 		Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.CASE_INSENSITIVE);
  25. 		Matcher matcher = pattern.matcher(string);
  26.  
  27. 		while (matcher.find()) {
  28. 		    System.out.println(matcher.group(0));
  29. 		}
  30. 	}
  31. }
Success #stdin #stdout 0.07s 2184192KB
comments (?)
stdin
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Standard input is empty
stdout
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w234
W234
E234
234w
234
https://ideone.com/xvKTwq
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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