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  1. import java.util.regex.*;
  2.  
  3. public class Main {
  4.   public static void main(String[] args) {
  5.     Pattern replace = Pattern.compile("^[A-Za-z][\\d]{4}$");
  6.     Matcher matcher1 = replace.matcher("A1234");
  7.     System.out.println("Output of A1234 = " + matcher1.replaceAll("ITS REPLACED"));
  8.     Matcher matcher2 = replace.matcher("F87652");
  9.     System.out.println("Output of F87652 = " + matcher2.replaceAll("ITS REPLACED"));
  10.   }
  11. }
Success #stdin #stdout 0.03s 245632KB
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Standard input is empty
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Output of A1234 = ITS REPLACED
Output of F87652 = F87652
https://ideone.com/j2JRWH
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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