Pregunta de entrevista en Agoda: Write a function to filter alphanumeric characters from string. How would you test it? Why you didn't use regular expression?

Agoda

Write a function to filter alphanumeric characters from string. How would you test it? Why you didn't use regular expression?

Anónimo

24 ene 2017

I created a simple function which keeps check on ASCII values for each character to filter it out.

Anónimo

24 ene 2019

String s = "AZabc1253.6789/'[paz`!@#$%^&*()"; String filter = s.replaceAll("[^0-9a-zA-Z_]", ""); System.out.print(filter);