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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. 		BufferedReader stdinReader = new BufferedReader(new InputStreamReader(System.in));
  14. 		Pattern p = Pattern.compile("_(\\d+)\\.[^.]+$");
  15. 		stdinReader.lines().forEach(input -> {
  16. 			Matcher m = p.matcher(input);
  17. 			if (m.find()) {
  18. 				System.out.printf("%s - version found : %s%n", input, m.group(1));
  19. 			} else {
  20. 				System.out.println("No version found in " + input);
  21. 			}
  22. 		});
  23. 	}
  24. }
Success #stdin #stdout 0.14s 2184192KB
comments (?)
stdin
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filename.pdf
filename1.pdf
filename_1.pdf
filename1_2.pdf
filename_1.test.pdf
filename_1.test_2.pdf
filename_1
stdout
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No version found in filename.pdf
No version found in filename1.pdf
filename_1.pdf - version found : 1
filename1_2.pdf - version found : 2
No version found in filename_1.test.pdf
filename_1.test_2.pdf - version found : 2
No version found in filename_1
https://ideone.com/Det2yX
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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