Java vowel consonant space counts switch?

Answer 1

// Prints out the number of vowels, consonants, and space characters in str.

static void printCounts(final String str) {

// Keep track of totals

int numVowels = 0;

int numConsonants = 0;

int numSpaces = 0;

// All lowercase chars will simplify the check for letters.

final String strLower = str.toLowerCase();

for (final char ch : strLower.toCharArray()) {

// Switch on the type of character of ch and update the correct total

switch (getType(ch)) {

case VOWEL:

++numVowels;

break;

case CONSONANT:

++numConsonants;

break;

case SPACE:

++numSpaces;

break;

}

}

// Done

System.out.println("Vowels:\t" + numVowels);

System.out.println("Consonants:\t" + numConsonants);

System.out.println("Spaces:\t" + numSpaces);

}

private enum CharType {VOWEL, CONSONANT, SPACE, OTHER;}

// Returns the CharType of ch

static CharType getType(final char ch) {

if (ch >= 'a' && ch <= 'z') { // letters

switch (ch) {

case 'a':

case 'e':

case 'i':

case 'o':

case 'u':

return CharType.VOWEL;

default:

return CharType.CONSONANT;

}

} else if (ch == ' ') { // spaces

return CharType.SPACE;

}

return CharType.OTHER;

}