Question

I am trying to find a word with regular expression, but i don’t know how to use it.

I will receive a text and a word and i have to find it in the text with and without @ or #, and return true if i find it or false if dont find.

But it can’t be in another word like this: “thisword”.

It just can be alone and preceded by # or @.

How can i do this in Java ?

Example:

“the @horse is white”

“the #horse is white”

“the horse is white”

“A shorse is white”

i have to find the word horse, #horse and @horse in this three phrases.

Answer 1

I guess this is what you want:

text.matches("\\b[#@]?" + Pattern.quote(word) + "\\b");