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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.  
  13. 		String s = "xyxyxyP";
  14. 		String pattern = "(?:(?=xy)|(?!^)\\G)xy(?=(?:xy)*P)";
  15. 		System.out.println(s.replaceAll(pattern, "$0z")); 
  16.  
  17. 	}
  18. }
Success #stdin #stdout 0.12s 320576KB
comments (?)
stdin 
Standard input is empty
stdout 
xyzxyzxyzP
https://ideone.com/uAISiL
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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