title: How to calculate division and multiply in Jasper report?
body: <p>I have problem when I try to calculate an expression in Jasper.
  The error message show after I run the report.</p>
  
  <pre><code>Error filling print... Error evaluating expression :      Source text : new Integer(($F{total_answer}.intValue()) / ($F{total_max_score}.intValue()*100)) 
  Can't find the translation for key = time_picker: using default (Time)  Can't find the translation for key = time_picker: using default (Time)  For input string: ""  For input string: ""  java.lang.ArithmeticException: / by zero 
  </code></pre>
  
  <p>This my code:</p>
  
  <pre><code>new Integer(($F{total_answer}.intValue()) / ($F{total_max_score}.intValue()*100))
  </code></pre>
  
  <p>Anyone know about this?</p>