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  1. class Ideone {
  2. 	public static void main (String[] args) {
  3. 		String str = "Hello";
  4. 		System.out.println(str.replaceAll(".(?=.)", "$0 "));
  5. 	}
  6. }
Success #stdin #stdout 0.1s 321408KB
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Standard input is empty
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H e l l o
https://ideone.com/0OOvn4
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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