Where am I wrong in using the ModelAttribute annotation?

index.jsp
<body>
Hello World ${"data"}
</body>

The output i am getting is only HelloWorld.

Please help where am I wrong?

Try this instead

I still say you should set break points and step through code to see exactly what is happening. If you go into a dark room, you can't see anything. So turn on the lights. In this case that is debugging.

Mark

Thank you so much.
If you don't mind I really don't know how to set breakpoints and I really need to know. So if you can suggest any links about setting the breakpoints.
Thanks in advance