/*
 * Dictionary.java
 *
 * Created: April 9, 2005
 * By: Stan Sclaroff, Boston University Dept. of Computer Science
 * Description: Dictionary class for program assignment 7.
 *
 * public method: boolean findWord(String s) 
 * returns true if word is in dictionary 
 *         false otherwise
 *
 * A private helper method loadWords() reads words for the
 * dictionary from the text file "words".  
 * 
 * NOTE: 
 * You must specify the correct file path in the constructor for FileReader!
 * This path would be the place where your copy of the file "words" is located.
 *
 * Each word is stored as a string in a Vector object.
 *
 */

package program7;

import java.io.*;
import java.util.*;

public class Dictionary {
    
    // word array initialized only once!
    private static Vector<String> word = new Vector<String>();
            
    // Method returns true if the string is in the dictionary
    public static boolean findWord(String s){
        if(word.isEmpty())
            loadWords();
        return word.contains(s.toLowerCase());
    }
    
    private static void loadWords(){
        // open file
        String line;
        try{
            BufferedReader inputStream = new BufferedReader(new FileReader("C:\\Program7\\src\\program7\\words"));
            while((line = inputStream.readLine()) != null)
                if(line.length() > 1)
                    word.addElement(line.toLowerCase());  
            inputStream.close();
        }
        catch(FileNotFoundException e){
            System.out.println("Cannot find file \"words\"");
            System.exit(0);
        }
        catch(IOException e){
            System.out.println("Problem in reading input from file \"words\"");
            System.exit(0);
        }
    }
}