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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. 		String s = " Java='f fyf ufu', Java=123";
  11. 		System.out.println(s.replaceAll("(?<=Java[=:])(?:(')[^']*(')|\\S+)", "$1*****$2")); 
  12. 	}
  13. }
Success #stdin #stdout 0.14s 48156KB
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stdin
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Standard input is empty
stdout
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 Java='*****', Java=*****
https://ideone.com/MjUJeu
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
secret

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