Will return number of consonants in given string 'str' - Java java.lang

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Description

Will return number of consonants in given string 'str'

Demo Code


//package com.java2s;

public class Main {
    /** String containing all ascii-consonants */
    public static final String CONSONANTS = "bBcCdDfFgGhHjJkKlLmMnNpPqQrRsStTvVwWxXzZ";

    /** Will return number of consonants in given string 'str'
     * @param str string where you want to count consonants
     * @return number of consonants in string 'str' */
    public static int getNumberOfConsonants(String str) {
        return getNumberOfXXX(str, CONSONANTS);
    }// ww w.  j  ava2s .  c  o  m

    /** Used only internally by methods numberOfVowels and numberOfConsonants,
     * for purpose of avoiding redundant code */
    private static int getNumberOfXXX(String str, String charGroup) {
        int num = 0;
        for (char letter : str.toCharArray()) {
            if (charGroup.contains(Character.toString(letter)))
                num += 1;
        }
        return num;
    }
}

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