Extract digits from string - StringUtils Java

Question

I have a String and I want to extract the (only) sequence of digits in the string.

Example: helloThisIsA1234Sample. I want the 1234

It\'s a given that the s

Answer 1

   `String s="as234dfd423";
for(int i=0;i

output:-

number:-4
number:-3
number:-4
String:-d
String:-f
String:-d
number:-2
number:-3