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

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

LANGUAGE: JAVA

CHALLENGE:

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

SOLUTION:

public boolean containsVowel(String sentence){ 
   if (sentence.isEmpty()) return false; 
   if (sentence.charAt(0) == 'a' || sentence.charAt(0) == 'e' || sentence.charAt(0) == 'i' || sentence.charAt(0) == 'o'
|| sentence.charAt(0) == 'u' || sentence.charAt(0) == 'A' || sentence.charAt(0) == 'E' || sentence.charAt(0) == 'I'
|| sentence.charAt(0) == 'O' || sentence.charAt(0) == 'U') return true; 
   else return containsVowel(sentence.substring(1,sentence.length()));
}

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