Pig Latin

import java.util.Scanner;

public class PigLatin {

	public static void main(String args[]) {
		System.out.println("Elcomeway otay hetay Igpay Atinlay Eneratorgay!");

		Scanner input = new Scanner(System.in);

		while(true) {
			String text = input.next();
			if (text.equalsIgnoreCase("itquay")) {
				System.out.println("Oodbyegay.");
				System.exit(0);
			}
			else {
				System.out.print(toPigLatin(text) + " ");
			}
		}
	}

	private static String toPigLatin(String text) {
		if (!isThereAVowel(text))
			return "Invalidway.";

		String[] punctuation = getPunctuation(text);
		text = trimPunctuation(text, punctuation);

		if (beginsWithVowel(text))
			return punctuation[0] + text + "way" + punctuation[1];
		else {
			String firstConsonants = getFirstConsonants(text);
			text = text.substring(firstConsonants.length());

			if (isCapitalized(firstConsonants))
				text = capitalize(text);

			return punctuation[0] + text + firstConsonants.toLowerCase() + "ay" + punctuation[1];
		}
	}

	private static boolean isThereAVowel(String text) {
		for (int i = 0; i < text.length(); i++) {
			String letter = text.charAt(i) + "";
			if (isAVowel(text.charAt(i) + ""))
				return true;
		}
		return false;
	}

	private static String[] getPunctuation(String text) {
		String firstPunctuation = "";
		int i = 0;
		while (isPunctuation(text.charAt(i) + "")) {
			firstPunctuation += (text.charAt(i) + "");
			i++;
		}

		String lastPunctuation = "";
		i = text.length() - 1;
		while (isPunctuation(text.charAt(i) + "")) {
			lastPunctuation = (text.charAt(i) + "") + lastPunctuation;
			i--;
		}

		String[] toReturn = {firstPunctuation, lastPunctuation};
		return toReturn;
	}

	private static String trimPunctuation(String text, String[] punctuation) {
		text = text.substring(punctuation[0].length(), text.length() - punctuation[1].length());
		return text;
	}

	private static boolean beginsWithVowel(String text) {
		if (isAVowel(text.charAt(0) + ""))
			return true;
		return false;
	}

	private static String getFirstConsonants(String text) {
		String consonants = "";
		int i = 0;
		while (!isAVowel(text.charAt(i) + "")) {
			consonants += (text.charAt(i) + "");
			i++;
		}
		if ((text.charAt(i - 1) + "").equalsIgnoreCase("q") && (text.charAt(i) + "").equalsIgnoreCase("u"))
			consonants += "u";
		return consonants;
	}

	private static boolean isCapitalized(String text) {
		if ((text.charAt(0)) == Character.toUpperCase(text.charAt(0)))
			return true;
		return false;
	}

	private static String capitalize(String text) {
		char firstChar = text.charAt(0);
        text = text.substring(1);
        return Character.toUpperCase(firstChar) + text;
    }

	private static boolean isAVowel(String letter) {
		String[] vowels = {"a", "e", "i", "o", "u"};
		for (int i = 0; i < vowels.length; i++)
			if (letter.equalsIgnoreCase(vowels[i]))
				return true;
		return false;
	}

	private static boolean isPunctuation(String character) {
		String[] punctuation = {"'", "[", "]", "(", ")", "{", "}", "<", ">", ":", ",", "-", "!", ".", "?", "\"", ";", "/", " ", "&", "*", "@", "\\", "^", "¡", "¿", "#", "%", "+", "~", "_", "|", "`", "$"};
		for (int i = 0; i < punctuation.length; i++)
			if (character.equalsIgnoreCase(punctuation[i]))
				return true;
		return false;
	}
}