Java String remove all non numeric characters but keep the decimal separator

Question

Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?

Answer 1

Try this code:

String str = "a12.334tyz.78x";
str = str.replaceAll("[^\d.]", "");

Now str will contain "12.334.78".