title: Talend studio isNumeric()
body: <p>I am learning talend open studio and I want to put this line of code :</p>
  
  <p><code>boolean numeric = isNumeric(input_row.id);</code> </p>
  
  <p>In <code>tjavaroW</code>, but when I run the job it throws me an error:</p>
  
  <blockquote>
    <p>isNumeric is an undefined method</p>
  </blockquote>
  
  <p>. Please can you tell me how to solve this problem? </p>
  
  <p>Thanks a lot.</p>