Today I did a presentation to our junior batch mates on Lexical Analyzers and Parsers. It was the final lecture of the course Compiler Theory (before the end semester exams) and Dr. Damith Karunaratne was good enough to lend me a time slot out of his lecture. Similarly I did a presentation on JLex to my batch mates when I was in my 3rd year on behalf of Dr Damith. This time around I added more content on parsers. I gave a demonstration as well. I think the students liked the demo more than the presentation :). I would like to thank Dr. Damith Karunaratne for giving me this opportunity. Thank you sir.