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  1. class Ideone {
  2. 	public static void main (String[] args) {
  3. 		String a="000";
  4.         String b="|&";
  5.         String result = (a + b).replaceAll("(?<=.)(?=.{" + (a.length() - 1) + "}(.))|.(?=.{0," + (b.length() - 1) + "}$)", "$1");
  6.         System.out.println(result);
  7. 	}
  8. }
Success #stdin #stdout 0.1s 27732KB
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Standard input is empty
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0|0&0
https://ideone.com/MFMEne
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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