Question

I’d like to use regex with Java.

What I want to do is find the first integer in a string.

Example:

String = 'the 14 dogs ate 12 bones' 

Would return 14.

String = 'djakld;asjl14ajdka;sdj' 

Would also return 14.

This is what I have so far.

Pattern intsOnly = Pattern.compile('\\d*'); Matcher makeMatch = intsOnly.matcher('dadsad14 dssaf jfdkasl;fj'); makeMatch.find(); String inputInt = makeMatch.group(); System.out.println(inputInt); 

What am I doing wrong?

Answer 1

You’re asking for 0 or more digits. You need to ask for 1 or more:

'\\d+'