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1. Offline

   mineart.at

   I want to reduce characters that repeat more than three times in a row.
   

   Code:

   Heeeeeeelllllllllooooooooo wwwwwwwwwwoooooooorrrrrrrld --> Heeelllooo wwwooorrrld

   Code:

           StringBuilder output = new StringBuilder();
           output.append(message.charAt(0));
          
           for (int i = 1; i < message.length(); i++) {
               if(message.charAt(i) != message.charAt(i-1) && message.charAt(i) != message.charAt(i-2) && message.charAt(i) != message.charAt(i-3)) {
                   output.append(message.charAt(i));
               }
           }

   What would the regex solution be?

    

   mineart.at, Mar 31, 2013

   #1
2. Offline

   HollowCube

   Code:

   message.replaceAll("(\\w)\\1+", "$1$1$1");
   

    

   HollowCube, Apr 20, 2013

   #2

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