Positive Look Behind 3 : Lookup « Regular Expressions « Java

1. Java
2. Regular Expressions
3. Lookup

Positive Look Behind 3

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class PositiveLookBehindExample {
  public static void main(String args[]) throws Exception {
    String regex = "(?<=http://)\\S+";
    Pattern pattern = Pattern.compile(regex);

    String candidate = "The Java2s website can be found at ";
    candidate += "http://www.java2s.com. There, ";
    candidate += "you can find information about some of ";
    candidate += "best example codes";

    Matcher matcher = pattern.matcher(candidate);
    while (matcher.find()) {
      String msg = ":" + matcher.group() + ":";
      System.out.println(msg);
    }
  }
}



           
       

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