package com.zetcode; import java.util.regex.Matcher; import java.util.regex.Pattern; public class JavaRegexGroups { public static void main(String[] args) { String content = "

The Pattern is a compiled " + "representation of a regular expression.

"; Pattern p = Pattern.compile("()"); Matcher matcher = p.matcher(content); while (matcher.find()) { System.out.println(matcher.group(1)); } } }