java replaceAll()

Question

What is the regular expression for replaceAll() function to replace "N/A" with "0" ?

input : "N/A" output : "0"

thanx

Answer 1

Assuming s is a String.

s.replaceAll("N/A", "0");

You don't even need regular expressions for that. This will suffice:

s.replace("N/A", "0");

Answer 2

Why use a regular expression at all? If you don't need a pattern, just use replace:

String output = input.replace("N/A", "0");