How to read the temperature sensor (LM35)

I have properly set up my temperature sensor (LM35) and wrote the code, and I now am trying to read it on the screen but nothing is coming up. Am i doing something wrong? if so can i please have your help

wrote the code

Unfortunately, I can't read the code from here.

trying to read it on the screen

What screen?

I suggest that you post a wiring schematic, and your code (formatted properly and inside [ code ] [ /code ] tags), explain what you expect to happen when you run your sketch and what actually happens.