ContainsAllVowels

/*## BEGINNER ##
* Write a program that checks if a word contains all the Finnish vowels: a, e, i, o, u, y, ä and ö
  * The Finnish word list is attached to this post
*/
package exercises;


import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

/*
 * Write a program that checks if a word contains all the vowels
 */

public class ContainsAllVowels {

    private char[] vowels;
    private String word;

    // Constructors

    public ContainsAllVowels() {
        this(new char[] {'a','e','i','o','u'}, "arsenious");
    }

    public ContainsAllVowels(char[] vowels, String word) {
        this.vowels = vowels;
        this.word = word.toLowerCase().trim();
    }

    public ContainsAllVowels(char[] vowels) {
        this(vowels, "");
    }

    // Setters
    public void setWord(String word) {
        this.word = word.toLowerCase().trim();
    }

    public void setVowelList(char[] vowels) {
        this.vowels = vowels;
    }

    public void setVowelList(Scanner scanner) {
        ArrayList<Character> vowels = new ArrayList<>();
        char vowel = ' ';

        // Get input
        while(!Character.isDigit(vowel) || !Character.isAlphabetic(vowel)) {
            System.out.print("Enter a digit to quit program \nPlease enter a vowel character: ");
            vowel = scanner.nextLine().charAt(0);
            if(Character.isAlphabetic(vowel)) {
                vowels.add(vowel);
            }
        }

        // Add vowels to this.vowels
        this.vowels = new char[vowels.size()];
        for(int index=0; index<vowels.size();index++) {
            this.vowels[index] = vowels.get(index);
        }
    }

    // check if word contains all vowels
    public boolean wordContainsAllVowels(String word) {

        int counter = 0, index=0;

        if(word.length() < this.vowels.length) {
            return false;
        }

        while(counter < this.vowels.length && index < word.length()) {
            if(this.vowels[counter] == word.charAt(index)) {
                counter++;
                index = 0;
            }
            else {
                index++;
            }
        }
        return (counter) == this.vowels.length;
    }

    public boolean wordContainsAllVowels() {
        return wordContainsAllVowels(this.word);
    }

    // creates list of words that contain all vowels, from .txt file
    private ArrayList<String> createValidWordList(Scanner scanner){
        ArrayList<String> validWords = new ArrayList<>();

        String line = scanner.nextLine();
        while(scanner.hasNextLine()) {
            if(wordContainsAllVowels(line)) {
                validWords.add(line);
            }
            line = scanner.nextLine();
        }
        scanner.close();

        return validWords;
    }

    public void displayWordsThatContainAllVowels(Scanner scanner) {
        ArrayList<String> words = createValidWordList(scanner);
        System.out.println("Here are the words that contain all vowels: ");
        if(words.size() <= 0) {
            System.out.println("No valid words!");
            return;
        }

        for(String w: words) {
            System.out.println(w);
        }
    }

    public static void main(String...args) throws FileNotFoundException {

        File file = new File("../Practice-Problems-Eclipse/res/wordList.txt");
        Scanner scanner = new Scanner(file, "UTF-8");
        ContainsAllVowels test = new ContainsAllVowels(new char[] {'a', 'e', 'i', 'o', 'u', 'y', 'ä', 'ö'});
        test.displayWordsThatContainAllVowels(scanner);
    }
}