title: extracting substring by lines
body: <p>I am fairly new to programming so please bear with me. Say I have a large string such as this.</p>
  
  <blockquote>
    <p>String story = "This is the first line.\n" <br>
                 + "This is the second line.\n" <br>
                 + "This is the third line\n" <br>
                 + "This is the fourth line.\n" <br>
                 + "This is the fifth line."; <br></p>
  </blockquote>
  
  <p>How would I go about extracting the first, fourth, and so on lines?</p>