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  1. class Test{
  2.     public static void main(String[] args){
  3.        String str="John     is      working  in London";
  4.        String[] arr=str.replaceAll("([\" \"])\\1+"," ").split(" ");
  5.        for(String i:arr){
  6.            System.out.println(i.trim());
  7.        }
  8.     }
  9.  
  10.  
  11. }
Success #stdin #stdout 0.07s 380160KB
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stdin
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Standard input is empty
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John
is
working
in
London
https://ideone.com/Vvpodq
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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