Matching a string in a Large text file?

Question

I have a list of strings containing about 7 million items in a text file of size 152MB. I was wondering what could be best way to implement the a function that takes a single

Answer 1

Depends what you want to do. When you want to repeat the search for matches again and again, I'd load the whole file into memory (into a HashSet). There it is very easy to search for matches.