I would like to change the way MessageFormat prints out numbers.
Integer foo = 99888;
String bar = MessageFormat.format("{0}", foo);
Observed value is "99,888".
Desired value is "99888".
What I could do is this:
String bar = MessageFormat.format("{0, number,#}", foo);
The problem is that I have to change it in a project with more than 10'000 MessageFormat.format(). So this is not really the way I would like to do it.
Do you know if there is a way to change the format of numbers given to MessageFormat.format() globally?
Other than writing a very strange aspect I don't believe there is a way. That's the price you pay for using a static method that you can't modify.
I'd look into doing a bulk change either using your favourite IDE or command line tools e.g. sed. If you want to change all occurrences of {0} into {0,number,#} it should be enough to
sed -i -e 's/{0}/{0,number,#}/g' MyClass.java