fezriddle.java

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Scanner;

public class run {

    /**
     * @param args
     * @throws FileNotFoundException
     */
    public static void main(String[] args) throws FileNotFoundException {
        File wordlist = new File("words.txt");
        Scanner s = new Scanner(wordlist);
        LinkedList<String> lst = new LinkedList<String>();
        tryNextWord: do {
            String str = s.nextLine();
            if (str.length() == 8) {
                String ucstr = str.toUpperCase();
                int AGSM = 2, BHNT = 3, EJKQX = 1, IOCUV = 1, FLRY = 1;
                for (int i = 0; i < 8; i++) {
                    switch (ucstr.toUpperCase().charAt(i)) {
                        case 'A':
                        case 'G':
                        case 'S':
                        case 'M':
                            AGSM--;
                            break;
                        case 'B':
                        case 'H':
                        case 'N':
                        case 'T':
                            BHNT--;
                            break;
                        case 'I':
                        case 'O':
                        case 'C':
                        case 'U':
                        case 'V':
                            IOCUV--;
                            break;
                        case 'F':
                        case 'L':
                        case 'R':
                        case 'Y':
                            FLRY--;
                            break;
                        case 'Q':
                        case 'J':
                        case 'X':
                        case 'E':
                        case 'K':
                            EJKQX--;
                            break;
                        default:
                            continue tryNextWord;
                    }
                    if (AGSM < 0 || BHNT < 0 || EJKQX < 0 || IOCUV < 0 || FLRY < 0) {
                        continue tryNextWord;
                    }
                }
                lst.add(Character.toUpperCase(str.charAt(0))+str.substring(1));
            }
        } while (s.hasNextLine());
        Collections.sort(lst);
        for(String str : lst)
            System.out.println(str);
        System.out.println("---------\n"+lst.size());
        s.close();
    }
}