How to remove empty results after splitting with regex in Java?

Question

I want to find all numbers from a given string (all numbers are mixed with letters but are separated by space).I try to split the input String but when check the result arra

Answer 1

The method i think to solve this problem is,

String urStr = "asd0085   sa223 9349x";
urStr = urStr.replaceAll("[a-zA-Z]", "");
String[] urStrAry = urStr.split("\\s");

1. Replace all alphabets from the string.
2. Then split it by whitespace (\\s).