WordProcessing.java

package org.drip.zen.text;

public class WordProcessing {

    public static boolean IsVowel (
        char alphabet)
    {
        boolean isVowel = false;

        if (alphabet == 'a' || alphabet == 'A')
            isVowel = true;

        if (alphabet == 'e' || alphabet == 'E')
            isVowel = true;

        if (alphabet == 'i' || alphabet == 'I')
            isVowel = true;

        if (alphabet == 'o' || alphabet == 'O')
            isVowel = true;

        if (alphabet == 'u' || alphabet == 'U')
            isVowel = true;

        return isVowel;
    }

    public static int CountVowels (
        final String word)
    {
        int numberOfVowels = 0;
        int alphabetCounter = 0;

        while (alphabetCounter < word.length())
        {
            char wordAlphabet = word.charAt (alphabetCounter);

            if (IsVowel (wordAlphabet))
                numberOfVowels = numberOfVowels + 1;

            alphabetCounter = alphabetCounter + 1;
        }

        return numberOfVowels;
    }

    public static boolean ContainsWord (
        String mainWord,
        String containedWord)
    {
        boolean contained = false;

        for (int mainCounter = 0; mainCounter < mainWord.length() - containedWord.length(); mainCounter = mainCounter + 1)
        {
            int numAlphabetsMatch = 0;
            
            for (int containedCounter = 0; containedCounter < containedWord.length(); containedCounter = containedCounter + 1)
            {
                if (mainWord.charAt (mainCounter + containedCounter) == containedWord.charAt (containedCounter))
                    numAlphabetsMatch = numAlphabetsMatch + 1;
            }

            if (numAlphabetsMatch == containedWord.length())
                contained = true;
        }

        return contained;
    }

    public static boolean ContainsWord2 (
        String mainWord,
        String containedWord)
    {
        boolean contained = false;

        int mainWordSize = mainWord.length();

        char[] mainLetters = mainWord.toCharArray();

        int containedWordSize = containedWord.length();

        char[] containedLetters = containedWord.toCharArray();

        if (mainWordSize < containedWordSize)
            return false;

        for (int mainCounter = 0; mainCounter < mainWordSize - containedWordSize; mainCounter = mainCounter + 1)
        {
            int numAlphabetsMatch = 0;
            
            for (int containedCounter = 0; containedCounter < containedWordSize; containedCounter = containedCounter + 1)
            {
                if (mainLetters[mainCounter + containedCounter] != containedLetters[containedCounter])
                    break;

                numAlphabetsMatch = numAlphabetsMatch + 1;
            }

            if (numAlphabetsMatch == containedWordSize)
                contained = true;
        }

        return contained;
    }

    public static int ContainedWordCount (
        String mainWord,
        String containedWord)
    {
        int containedWordCount = 0;

        int mainWordSize = mainWord.length();

        char[] mainLetters = mainWord.toCharArray();

        int containedWordSize = containedWord.length();

        char[] containedLetters = containedWord.toCharArray();

        if (mainWordSize < containedWordSize)
            return 0;

        for (int mainCounter = 0; mainCounter < mainWordSize - containedWordSize; mainCounter = mainCounter + 1)
        {
            int numAlphabetsMatch = 0;
            
            for (int containedCounter = 0; containedCounter < containedWordSize; containedCounter = containedCounter + 1)
            {
                if (mainLetters[mainCounter + containedCounter] != containedLetters[containedCounter])
                    break;

                numAlphabetsMatch = numAlphabetsMatch + 1;
            }

            if (numAlphabetsMatch == containedWordSize)
                containedWordCount = containedWordCount + 1;
        }

        return containedWordCount;
    }

    public static final void main (
        String[] args)
    {
        String myWord = "New York City, New York";

        int vowelsInWord = CountVowels (myWord);

        System.out.println ("\tNumber of Vowels in " + myWord + " is " + vowelsInWord);

        String myContainedWord = "City";

        System.out.println ("\tIs " + myContainedWord + " inside " + myWord + "? " + ContainsWord2 (myWord, myContainedWord));

        myContainedWord = "new";

        System.out.println ("\tIs " + myContainedWord + " inside " + myWord + "? " + ContainsWord2 (myWord, myContainedWord));

        System.out.println ("\tHow many '" + myContainedWord + "' in '" + myWord + "'? " + ContainedWordCount (myWord, myContainedWord));
    }
}