java - Check that the input only contains certain characters -


i need check input string contains alphabetic characters, asterisks, spaces, , tabs.

i tried this, doesn't work:

firststr.matches(".*[a-za-z].*.*[\\t].*.*[\\s].*")

use regex check if string contains alphabets, spaces, asterisks, tabs:

firststr.matches("[a-za-z *\t]+")

you close, needed single character class.


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