Using Java Regex, how to check if a string contains any of the words in a set ?

Question

I have a set of words say -- apple, orange, pear , banana, kiwi

I want to check if a sentence contains any of the above listed words, and If it does , I want to f

Answer 1

I don't think a regexp will do a better job in terms of performance but you can use it as follow:

Pattern p = Pattern.compile("(apple|orange|pear)");
Matcher m = p.matcher(inputString);
while (m.find()) {
   String matched = m.group(1);
   // Do something
}