assn2 main

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

public class Main {

    public static void main(String[] args) {
        SimpleList<String> list = new SimpleList<String>(null);
        MyQueue queue = new MyQueue();
        System.out.println(args.length);
        if (args.length != 3) {
            System.out.println("No input file provided. Expected Usage: java <executable> words5.txt");
            System.exit(1);
        }
        else {
            File string_file = new File(args[0]);
            String start = new String(args[1]);
            String end = new String(args[2]);
            try {
                Scanner inStrings = new Scanner(string_file);
                while(inStrings.hasNext()) {
                    String nextStr = inStrings.next();
                    if(nextStr.equals(start)){
                        do{
                            System.out.println(nextStr);
                            list.pushBack(nextStr);//------------push words into inputStack
                            nextStr = inStrings.next();
                        }while(!nextStr.equals(end));
                    }
                }

                inStrings.close();
            } catch (FileNotFoundException e) {
                System.out.println(e.getMessage());
            }
        }
        //***********************add in main code
        int i=0;
        while(list.getAt(i)!=null){//--------------------------------compares first word to all in list
            if(wordCompare(list.getAt(0),list.getAt(i))){
                MyStack<String> temp = new MyStack<String>();
                temp.push(list.getAt(0));
                temp.push(list.getAt(i));
                queue.push(temp);
                list.remove(i);
                i--;
            }
            i++;
        }
        list.remove(0);
        int j=0;
        while(queue.getAt(j)!=null){
            String first = ((MyStack<String>) queue.front()).top();
            int k=0;
            while(list.getAt(k)!=null){
                if(wordCompare(list.getAt(0),list.getAt(i))){
                    MyStack<String> temp = new MyStack<String>();
                    temp.push(list.getAt(0));
                    temp.push(list.getAt(i));
                    queue.push(temp);
                    list.remove(i);
                    k--;
                }
                k++;
            }
            if(queue.getAt(j+1)!=null)
                queue.pop();
            j++;
        }


    System.exit(0);
    }
    public static boolean wordCompare(String first, String second){
        Character[] farray,sarray;
        farray = toCharArray(first);
        sarray = toCharArray(second);
        int count = 0;
        for(int i=0; i<farray.length; i++){
            if(farray[i].equals(sarray[i]))
                count++;
        }
        if(count==1)
            return true;
        else
            return false;
    }
    public static Character[] toCharArray(String s){
        if(s==null)
            return null;
        int length = s.length();
        Character[] carray = new Character[length];
        for(int i=0; i<length; i++){
            carray[i] = new Character(s.charAt(i));
        }
        return carray;
    }
}