title: String manipulation on scriptlet
body: <p>I come from a PHP background. I just want to do a simple string replace. </p>
  
  <p>I just want to replace any <strong>question marker</strong> with other character of '-'. in that "Material" string.</p>
  
  <p>If I do</p>
  
  <pre><code>&lt;%= Material %&gt;
  </code></pre>
  
  <p>it will simple like write out "BBBB??AC".</p>
  
  <p>I have no another access but just one .jsp file. </p>
  
  <p>Is there another easy way i can do a string replace and print it out?</p>