Matcher appendTail Method in Java with Examples

The java.util.regex.Matcher class represents an engine that performs various match operations. There is no constructor for this class, you can create/obtain an object of this class using the matches() method of the class java.util.regex.Pattern.

The appendTail() method of this (Matcher) class accepts a StringBuffer object and append the characters of the input sequence to it.

Example

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class AppendTail {
   public static void main(String[] args) {
      String str = "<p>This <b>is</b> an <b>example</b> HTML <b>script</b>.</p>";
      //Regular expression to match contents of the bold tags
      String regex = "<b>(\S+)</b>";
      //Creating a pattern object
      Pattern pattern = Pattern.compile(regex);
      //Matching the compiled pattern in the String
      Matcher matcher = pattern.matcher(str);
      StringBuffer sb = new StringBuffer();
      matcher.appendTail(sb);
      while (matcher.find()) {
         System.out.println(matcher.group(1));
      }
      System.out.println("Contents of the StringBuffer: \n"+ sb);
   }
}

Output

is
example
script
Contents of the StringBuffer:
<p>This <b>is</b> an <b>example</b> HTML <b>script</b>.</p>