如何在使用do-while循环时让我的程序只计算一个单独的单词？

I am trying to make a program that finds a 'profane' word (which is 'cat' in this case) and say how many times it comes up in my input, and it works, except that it will count that profane word when it is embedded in a another word like 'conCATination'. Why is this the case? How can I get it to just count it when the word is by itself? I am trying to make a program that finds a 'pro