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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		String s = "random+2END+SIGNAL+random++7END";
  10. 		System.out.println(s.replaceFirst("(SIGNAL.*?)\\W+\\d+(END)", "$1$2"));
  11. 	}
  12. }
Success #stdin #stdout 0.05s 2184192KB
comments (?)
stdin 
Standard input is empty
stdout 
random+2END+SIGNAL+randomEND
https://ideone.com/UkCg8H
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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