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Thread: help with exercise - recursion
- 07-14-2014, 10:06 AM #1Member
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- Jul 2014
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help with exercise - recursion
i'm learning with myProgrammingLab.
the question is:
Write a recursive, boolean -valued method , containsVowel, that accepts a string and returns true if the string contains a vowel.
A string contains a vowel if: •The first character of the string is a vowel, or
•The rest of the string (beyond the first character ) contains a vowel
i wrote the answer in all kind of variation and checked with blueJ and my code works.
in the exercise website i get an error and i don't understand what is wrong.
my code is:
public static boolean containVowel(String str)
if(str.length() <= 0)
if(str.charAt(str.length()-1) == 'a' || str.charAt(0)=='e' || str.charAt(0)=='i' || str.charAt(0)=='o' || str.charAt(0)=='u')
the error i get is:
⇒ You almost certainly should be using: containsVowel
⇒ We think you might want to consider using: =
⇒ We think you might want to consider using: <
please anyone can shade some light?
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