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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class Main
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		String s1 = "abc%26def";
  9.         String s2 = "abc%2623def";
  10.         String regex = "%26(?!\\d)";
  11.         System.out.println(s1.replaceAll(regex, "&"));
  12.         System.out.println(s2.replaceAll(regex, "&"));
  13. 	}
  14. }
Success #stdin #stdout 0.02s 245632KB
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stdin
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Standard input is empty
stdout
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abc&def
abc%2623def
https://ideone.com/luCmFN
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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