How do I count the number of words in a string?

Question

I need to count the number of words and I am assuming the correct way to do it is by calculating the number of times that the previous character in a string is not a letter

Answer 1

   if (string.charAt(i-1) == alphabets.charAt(j)) {
       counter++;
   }

You are incrementing the counter if the character is some alphabet character. You should increment it if it is no alphabet character.