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  1. public class Main {
  2. 	public static void main(final String[] args){
  3. 		final String sentence = "hello world! 722";
  4. 		final String result = sentence.replaceAll("[a-zA-Z]","@");
  5. 		System.out.println(result);
  6. 	}
  7. }
Success #stdin #stdout 0.07s 33640KB
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@@@@@ @@@@@! 722
https://ideone.com/ZTqk91
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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