java - Result Set not displaying data in JSP -

i retrieving data database in jsp in result set. resultset in not empty not displaying data in html tags, i.e. h3 empty

resultset rs = null; string sqlstr;  sqlstr = "select * ideas"; statement stmt = con.createstatement(); rs = stmt.executequery(sqlstr);  <% while (rs.next()) { %> <h3> <% rs.getstring("heading"); %></h3> <% } %> 

all other statements insert , delete working.

it should be

<h3> <%= rs.getstring("heading"); %></h3> 

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note: putting java code in view discouraged, put in servlet or controller , use jstl in view layer in jsp