title: How to parse a string with no delimiter?
body: <p>I have a frame that I want to parse. It is a String, and the fields have no delimiters, and have different lengths. How can I get those fields (using Java)?</p>
  
  <p>For example the frame: $XXYYYU#</p>
  
  <p>How can I get the content of the fields 'XX', 'YYY' and 'U' ?</p>
  
  <p>Thanks!</p>