> It's easy to guess what
[[a-z]&&[^aeiou]] try to match,
No, it's not, if you want good answers, please ask good questions.
See also SSCCE!
compare tybalt's reply in this respect, he shows input and expected output.
This is not a Java board.
Why haven't you at least linked to the correct Java documentation?
> How perl do such thing
There is more than one way to do it
The details depend on it
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