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  1. import java.util.*;
  2. import java.util.regex.*;
  3. import java.lang.*;
  4. import java.io.*;
  5.  
  6. class Ideone {
  7.   public static void main (String[] args) throws java.lang.Exception {
  8.     var str = "a.b.c..d..!..e!!...!!!f....!!.!!!...";
  9.  
  10.     var res = str
  11.       .replaceAll("\\.", "..")
  12.       .replaceAll("!", ".!")
  13.       .replaceAll("\\.\\.", "!")
  14.       .replaceAll("\\.!", ".")
  15.     ;
  16.  
  17.     System.out.println(str);
  18.     System.out.println(res);
  19.   }
  20. }
Success #stdin #stdout 0.08s 47756KB
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stdin
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Standard input is empty
stdout
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a.b.c..d..!..e!!...!!!f....!!.!!!...
a!b!c!!d!!.!!e..!!!...f!!!!..!...!!!
https://ideone.com/Y2BLPt
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
public

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