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  1. import java.util.regex.*;
  2.  
  3. public class Main { 
  4.    public static void main(String[] args) {
  5.       String txt = "There exists a word *random*.";
  6.         // extract the word
  7.         Matcher m = Pattern.compile("[*](.*?)[*]").matcher(txt);
  8.         if (m.find()) {
  9.             System.out.println("matches");
  10.             System.out.println("->> " + m.group(0));
  11.             txt = txt.replace(m.group(0), m.group(1).replaceAll(".", "*"));
  12.         }
  13.         System.out.println("-> " + txt);
  14.    }
  15.  
  16. }
Success #stdin #stdout 0.07s 380224KB
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stdin
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Standard input is empty
stdout
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matches
->> *random*
-> There exists a word ******.
https://ideone.com/VZ7uMT
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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