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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.util.regex.*;
  5.  
  6. class Ideone
  7. {
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		List<String> strs = Arrays.asList("aaaa_b", "zzzzzz_i", "---------_f", "TTTTT_dt", "..._.");
  11. 		Pattern p = Pattern.compile("_(?:[bif]|dt)\\z");
  12. 		for (String str : strs) {
  13. 			System.out.println("\"" + str + "\": " + !p.matcher(str).find());
  14. 		}
  15. 	}
  16. }
Success #stdin #stdout 0.08s 27948KB
comments (?)
stdin 
Standard input is empty
stdout 
"aaaa_b": false
"zzzzzz_i": false
"---------_f": false
"TTTTT_dt": false
"..._.": true
https://ideone.com/XZ5f5t
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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