title: Populating cascading dropdown lists in JSP/Servlet
body: <p>Suppose I am having three dropdownlist controls named <code>dd1</code>, <code>dd2</code> and <code>dd3</code>. The value of each dropdownlist comes from database. <code>dd3</code>'s value depends upon value of <code>dd2</code> and <code>dd2</code>'s value depends on value of <code>dd1</code>. Can anyone tell me how do I call servlet for this problem?</p>