Java replace method, replacing with empty character [duplicate]

Question

Suppose I have the following in String format:

2.2

And I want to replace the decimal point with an empty space, to make it look like this:

22

How do I do this? I thought replace would have done the trick, but when I try it like this:

string.replace('.', '');

I get an error with the '' because it supposedly isn't a character. That makes sense, so how else can I accomplish what I want?

Answer 1

If you just exchange single for double quotes, this will work because an empty string is a legal value, as opposed to an "empty character", and there's an overload replace(CharSequence, CharSequence). Keep in mind that CharSequence is the supertype of String.

Answer 2

try :

string.replace(".", ""); 

Other way is to use replaceAll :

string.replaceAll("\\.","");