title: how to search two values using RowSorter JTable
body: <p>when i select Class and Section from ComboBox then it will have to search Jtable for specific class and Section and show only those class and section? <br/></p>
  
  <p><a href="https://i.stack.imgur.com/EbAwZ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EbAwZ.jpg" alt="enter image description here"></a></p>