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

Hashing is faster as you can directly access the 'encoded string'

for example, If you assume that all characters are '9', so it will have to evaluate 8 if conditions before executing the right statement, each time you process a character.

That's just a worst-case example while using the switch()