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POStrings and Recursion
 

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    <p>So I was looking around online and I found some assignment question someone had posted, and I think I'd like to have a go at it. It deals with a class and something called a derived class which I'm not interested in trying, (mostly because I don't have a clue what that is), but I saw these requirements and was wondering if they can all be done with recursion, using like a void or int function. Here's what I've got:</p> <blockquote> <p>A method called strLength that returns the length of the string.</p> <p>A method called lowerCase that returns the number of lower case characters.</p> <p>A method called upperCase that returns the number of upper case characters .</p> <p>A method called vowelCnt that returns the number of vowels in a string.</p> <p>A method called charSum that returns the sum of all characters within the string.</p> </blockquote> <p>I think I can do that last one:</p> <pre><code>int charSum(string x, int i) { if(x.size() == i) return (0 + x[i]); else return charSum(x, i + 1) + x[i]; } </code></pre> <p>Although I'm not all that sure about doing it with an actual char, but for the purpose of practicing and seeing how its done using recursion, I'm not too worried about weather it's a char or a string, just that it works.</p> <p>Check that, I found this, (note, I didn't come up with this one, someone named eazar001 did...):</p> <pre><code>int countString(char sample[], int i, int total) { if(sample[i] == 0) { return total; } else { return countString(sample, i+1, ++total); } } </code></pre> <p>Does anybody know how to do the other ones on the list, or have something they can point me to that can show me how to scan a string to look for these things, (especially the upper and lower case stuff, I had no idea there was a difference). Thanks a million to anyone willing to walk me though this stuff as I try to self teach!</p>
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    1. USMichelle Peoples
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    1. COYour second example is missing a `return` statement in the `else` clause. All your problems should follow pretty much the same pattern, the only difference is what values they accumulate during the recursion.
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    2. COThis type of question is not a good fit for SO. You're supposed to ask a question that can have specific answer. Asking for general advice leads to ongoing discussions, not answers.
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    3. COSo should I break them down?
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