character checking
<p>if (c=='a' || c=='e' || c=='i' || c=='o' || c=='u') {
        count++;</p>

<p>When i give the above statement it returns number of vowels in a word only if the given word is in lowercase (ie: input: friend output 2 vowels). I Want to know even if i give uppercase or mixed it should return number of vowels. How to do it?</p>
