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  1. import java.util.regex.Matcher;
  2. import java.util.regex.Pattern;
  3.  
  4. class RegEx {
  5.     public static void main(String[] args) {
  6.         String s = "Windows Server 2008 datacenter";
  7.         String r = "(?i)Win\\w*\\s*Server\\s*(2008)(?!\\sR2).*?$";
  8.         Pattern p = Pattern.compile(r);
  9.         Matcher m = p.matcher(s);
  10.         while (m.find()) {
  11.             System.out.println(m.group());
  12.         }
  13.     }
  14. }
Success #stdin #stdout 0.05s 4386816KB
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stdout 
Windows Server 2008 datacenter
https://ideone.com/ck07YG
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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