import java.awt.Font;
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Scanner;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;


/**
 *
 * @author Bill Kraynek
 */
public class CountWordsWithMinimalWordClass {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {

        Scanner fileScanner = new Scanner(new File("src/CountWords.java"));
        fileScanner.useDelimiter("[^A-Za-z]+");
        ArrayList<WordClass> words = new ArrayList<WordClass>();
        int maxWordLength = 0;
        while (fileScanner.hasNext()) {
            String word = fileScanner.next();
            int index = indexOfWord(words,word);
            if ( index < 0 ) {
                words.add(new WordClass(word));
                index = words.size()-1;
                if (maxWordLength < word.length()) {
                    maxWordLength = word.length();
                }// end if
            }// end if
            words.get(index).incrementCount();
        }// end while
        display(words, maxWordLength);
        Collections.sort(words, new AlphaWordsComparator());
        display(words, maxWordLength);
        Collections.sort(words, new CountWordsComparator());
        display(words, maxWordLength);
    }

    static int indexOfWord(ArrayList<WordClass> words, String word) {
        for( int i = 0; i < words.size(); i++ ) {
            if( words.get(i).getWord().equals(word) ) return i;
        }// end for
        return -1;
    }// end containsWord

    static void display(ArrayList<WordClass> words, int maxWordLength) {
        String blanks = "";
        for ( int i = 0; i < maxWordLength + 1; i++  ) blanks += " ";
        String out = "  Word" + blanks.substring(8) + "Count\n\n";
        for ( int i = 0; i < words.size(); i++ ) {
            out += words.get(i).getWord() + blanks.substring(words.get(i).getWord().length()) + words.get(i).getCount() + "\n";
        }// end for
        JTextArea outArea = new JTextArea(out,50,30);
        outArea.setFont(new Font(Font.MONOSPACED,Font.PLAIN,15));
        JOptionPane.showMessageDialog(null, new JScrollPane(outArea));
    }
}

class WordClass {

    private String word;
    private int count;

    public WordClass(String word) {
        this.word = word;
        count = 0;
    }

    public String getWord() {
        return word;
    }

    public int getCount() {
        return count;
    }

    public void incrementCount() {
        count++;
    }

}// end WordClass

class AlphaWordsComparator implements Comparator<WordClass> {
    public int compare(WordClass lhs, WordClass rhs) {
        return lhs.getWord().compareTo(rhs.getWord());
    }
}

class CountWordsComparator implements Comparator<WordClass> {

    public int compare(WordClass lhs, WordClass rhs) {
        int countDifference = rhs.getCount() - lhs.getCount();
        if (countDifference != 0) {
            return countDifference;
        }
        return lhs.getWord().compareTo(rhs.getWord());
    }
}// end WordCountComparator