extracting a number from a string in Java

Question

I have a string with a number inside and I want to retrieve that number. for example if I have a string \"bla bla 45 bla bla\" I want to get the number 45. I have searched a

Answer 1

You should use matcher.find() instead.

Answer 2

Here's an example on how to use matcher.find()

    Matcher matcher = Pattern.compile("\\d+").matcher("bla bla 45 bla 22 bla");
    while(matcher.find()) {
        System.out.println(matcher.group());
    }

This will output

45
22