Better use HashTable or switch case

Question

I\'m not sure which one is better. I need to parse each character of an input string and get a replacing string for the character. For some objects all alphanumeric characte

Answer 1

I'd use the HashTable, because the code is more readable and maintainable: you could one day decide to load the subtitution strings from an XML file, so that you won't change the code to change the mappings.