How can i erase a character from a string & replace that with a new character?

Question

Suppose, i have to take a string as an input from user & he type "specialised".
I want the output as sp#ci@lis#d. How can i do this?

Answer 1

Put it in a loop and search for that specific character and replace with new character. Built in functions can differ according to which language you are using

Answer 2

If you are familiar with regex,

http://www.cplusplus.com/reference/regex/regex_replace/