title: java string delimiter, keeping delimiter in token
body: <p>im trying to split a string but keep the delimiter at the beginning of the next token (if thats possible)</p>
  
  <p>Example: I'm trying to split the string <code>F120LF120L</code> into </p>
  
  <pre><code>F120
  L
  F120
  L
  </code></pre>
  
  <p>I've tried</p>
  
  <pre><code>StringTokenizer st = new StringTokenizer(str, "F,L");
  </code></pre>
  
  <p>but that just returns </p>
  
  <pre><code>120
  120
  </code></pre>