in reply to JAVA [[a-z]&&[^aeiou]] equivalence

> 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

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

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