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  1.  class Test{
  2.      public static void main(String[] args){        
  3.        String str = "They are working in London..... he is a Java developer !!!!! they are playing-----She is working_______";
  4.         String newStr = str.replaceAll("([|\\-|\\.|\\!|\\_])\\1+", "$1");
  5.         System.out.println(newStr);
  6.      }    
  7.  
  8.  }
Success #stdin #stdout 0.08s 380224KB
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They are working in London. he is a Java developer ! they are playing-She is working_
https://ideone.com/1dy6A2
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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