Confusion in Java Regular Expression [duplicate]

Question

What does these following two regular expression means?

.*? and .+?

Actually I understood usage these Quantifiers i.e.

'.' -> Any character
'*' -> 0 or more times
'+' -> once or more times
'?' -> 0 or 1

Indeed, I am literally confused!!! about using .*? and .+?.Could anybody show up with proper examples for these cases.

And you'r most welcome to share good links that presents useful examples practices. Thanks in advance.

Answer 1

To break down we have:

. - Any character
* - Any number of times
? - That is consumed reluctantly

. - Any character
+ - At least once
? - That is consumed reluctantly

A reluctant or "non-greedy" quantifier (the '?') matches as little as possible in order to find a match. A more in-depth look at qantifiers (greedy, reluctant and possessive) can be found here