Laba 2 Main

package com.company;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.io.InputStream;
import java.nio.file.Path;
import java.io.File;
import java.io.*;
import java.util.Stack;
import java.util.List;

public class Main {
    public static String output = "";
    public static String out = "";

    public static int HEIGHT;
    public static int WIDTH;
    public static Point START;
    public static Point END;


    public static ArrayList<Boolean> list = new ArrayList<>();
    public static Stack<Point> stack = new Stack<>();
    public static int[] tor;
    public static int[][] matrix;
    public static Point[][] arr;
    public static Labirint labirint;
    public static Point[][] potr;

    public static void main(String[] args) {
        Path p = Paths.get("C:\\Users\\RomanNumberOne\\IdeaProjects\\Laba2\\src\\com\\company\\Input");
        String[] s;
        s = read(p);
        START = setPoint(s , Integer.parseInt(s[s.length-4]), Integer.parseInt(s[s.length-3]));
        END = setPoint(s , Integer.parseInt(s[s.length-2]), Integer.parseInt(s[s.length-1]));

        labirint = labirintInitialize(s);
        potr = labirint.getMatrix();
        Point current;
        current = potr[START.getX()-1][START.getY()-1];

        for (int i = 0; i<HEIGHT; i++){
            for (int j = 0; j<WIDTH; j++){
                if (labirint.getMatrix()[i][j].getSignification()){
                    list.add(true);
                }
            }
        }
        list.remove(0);
        stack.push(current);
        output += current.getX()+1;
        output += " ";
        output += current.getY()+1;
        output += "\n";
        while (!list.isEmpty()) {
            Point up = potr[current.getX()-1][current.getY()];
            Point down = potr[current.getX()+1][current.getY()];
            Point left = potr[current.getX()][current.getY()-1];
            Point right = potr[current.getX()][current.getY()+1];
            current.setVisitation(true);



            if (up.getSignification() && !up.getVisitation()){
                current = up;
                current.setVisitation(true);
                list.remove(0);
                stack.push(current);
                //System.out.println("up");
                output += current.getX()+1;
                output += " ";
                output += current.getY()+1;
                output += "\n";
            }else if(down.getSignification() && !down.getVisitation()){
                current = down;
                current.setVisitation(true);
                list.remove(0);
                stack.push(current);
                //System.out.println("down");
                output += current.getX()+1;
                output += " ";
                output += current.getY()+1;
                output += "\n";
            }else if (left.getSignification() && !left.getVisitation()){
                current = left;
                current.setVisitation(true);
                stack.push(current);
                list.remove(0);
                //System.out.println("left");
                output += current.getX()+1;
                output += " ";
                output += current.getY()+1;
                output += "\n";
            }else if (right.getSignification() && !right.getVisitation()){
                current = right;
                current.setVisitation(true);
                list.remove(0);
                stack.push(current);
                //System.out.println("right");
                output += current.getX()+1;
                output += " ";
                output += current.getY()+1;
                output += "\n";
            }else if (!stack.empty()){
                stack.pop();
                if (!stack.empty()) {
                    current = stack.pop();
                    output = output.substring(0, output.length() - 4);
                }else {
                    break;
                }
            }else {
                break;
            }

        }

        if (list.isEmpty()){
            //System.out.println("Y");
            out+="Y";
            out+="\n";
            out += output;
        }else {
            out+="N";
            //System.out.println("N");
        }
        //System.out.println(out);

        write("C:\\Users\\RomanNumberOne\\IdeaProjects\\Laba2\\src\\com\\company\\Output", out);
    }

    public static String[] read(Path p){
        String str;
        InputStream in;
        try{
            in = Files.newInputStream(p);
            byte[] bytes = new byte[in.available()];
            in.read(bytes);
            String s = new String(bytes, "cp1251");
            str = s;
        }
        catch (Exception e){
            return null;
        }
        String lolo = str.replaceAll("\\p{Cntrl}", ",");
        String help = lolo.replaceAll(" ", ";");
        String d = help.replaceAll(",,", ";");
        String[] s = d.split(";");
        return s;
    }
    public static Labirint labirintInitialize(String[] s){
        tor = new int[s.length];

        int c = 0;
        for (String i: s){
            tor[c] = Integer.parseInt(i);
            c++;
        }
        HEIGHT = tor[0];
        WIDTH = tor [1];

        matrix = new int[HEIGHT][WIDTH];

        int yo = 2;
        for (int i=0; i<HEIGHT; i++){
            for (int j=0; j<WIDTH; j++){
                matrix[i][j] = tor[yo];
                yo++;
            }
        }

        arr = new Point[HEIGHT][WIDTH];
        for (int i = 0; i<HEIGHT; i++){
            for (int j = 0; j<WIDTH; j++){
                Point point = new Point(i,j);
                if (matrix[i][j] == 0){
                    point.setSignification(true);
                }else{
                    point.setSignification(false);
                }
                arr[i][j] = point;
            }
        }
        Labirint labirint = new Labirint(arr);
        return labirint;
    }
    public static Point setPoint(String[] s, int x, int y){
        Point point = new Point(x,y);
        return point;
    }
    static void write(String fileName, String text) {
        //Определяем файл
        File file = new File(fileName);

        try {
            //проверяем, что если файл не существует то создаем его
            if(!file.exists()){
                file.createNewFile();
            }

            //PrintWriter обеспечит возможности записи в файл
            PrintWriter out = new PrintWriter(file.getAbsoluteFile());

            try {
                //Записываем текст у файл
                out.print(text);
            } finally {
                //После чего мы должны закрыть файл
                //Иначе файл не запишется
                out.close();
            }
        } catch(IOException e) {
            throw new RuntimeException(e);
        }
    }
}