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

The switch code does the same thing as the alternative, but it's much more readable which should be the main concern here.

I would however use an abstract factory to get one of a number of different encoding implementations for different types of input.