import javax.swing.JOptionPane;
public class test1
{
    public static void main(String [] args)
    {
        String phrase = JOptionPane.showInputDialog(null, "Please enter word/phrase to be analyzed");
        vowelsConsonants(phrase);
    }
    public static void vowelsConsonants(String input)
    {
        String result = "";
        String vowels = "aeiou";
        String consonants = "bcdfghjklmnpqrstvwxyz";
        String tempInput = input.toLowerCase();
        tempInput = tempInput.replaceAll("[^a-z]","");
        String first = tempInput.substring(0,1);
        String[] inputArray = tempInput.split("");
        boolean conTrue = true;
        boolean vowTrue = true;
        int i, j;
        if(vowels.indexOf(first) != -1)
        {
            i = 1;
            j = 2;
        }
        else
        {
            i = 0;
            j = 1;
        }
        while(conTrue && i < inputArray.length)
        {
			if(consonants.indexOf(inputArray[i]) == -1)
                conTrue = false;
			i +=2;
        }

        if(conTrue)
        {
            while(vowTrue && j < inputArray.length)
            {
                if(vowels.indexOf(inputArray[j]) == -1)
                    vowTrue = false;
                j += 2;
            }



        }
        if(vowTrue && conTrue)
            result += "Word/phrase entirely comprises of alternating vowels and consonants";
        else
            result += "Word/phrase does not entirely comprise of alternating vowels and consonants";

        JOptionPane.showMessageDialog(null, result);
    }
}