Matcher doesn't return the matched regex, instead returns whole string in group(0) (Java)

The problem I’m facing is that upon following the question at this link, Using Regular Expressions to Extract a Value in Java, I am unable to extract the correct group of the String

Pattern p = Pattern.compile("I have .*");
Matcher m = p.matcher("I have apples");

if(m.find()){
    System.out.println(m.group(0));
}

What I get:

I have apples

What I want to get:

apples

I’ve tried asking for m.group(1) as well but it throws me an exception.

How should I go about this?

>Solution :

You have to define a capturing group to get m.group(...) work correctly.

Change your pattern to

Pattern p = Pattern.compile("I have (.*)");

m.group(0) ‘denotes the entire pattern’
m.group(1) now returns the expected ‘apple’