title: Remove Substring from the Original String
body: <p>I am attempting to remove a substring from the original string</p>
  
  <p>code attempted:</p>
  
  <pre><code>String details = events.event_details.value[bi];
  String details2 ="";
  if(details.length()&gt;70) {
      details2 = details.substring(70);
      details.replaceFirst(details2, " ");
  }
  </code></pre>