Matura 2k18

package matura2k18;

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

public class Matura {

    public static void main(String[] args) {
        System.out.println("Matura");
        String message  = getMessage_4_1();
        System.out.println( "4.1: " + message);

        get_4_2();
        get_4_3();

    }

    public static char[][]  readFile() {
        try {
            Scanner data = new Scanner(new File(".\\Dane_PR2\\przyklad.txt"));
            char[][] tab = new char[1000][];

            int y = 0;
            while (y < 1000) {
                int x = 0;

                String wiersz = data.next();
                tab[y] = new char[wiersz.length()];
                while (x < wiersz.length()) {
                    tab[y][x] = wiersz.charAt(x);
                    x++;
                }

                y++;
            }
            data.close();

            return tab;

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String getMessage_4_1() {
        char[][] tab = readFile();
        String message = "";
        int y=39;
        while(y<1000) {
            message += tab[y][9];
            y+=40;
        }

        return message;
    }

    public static String get_4_2() {
        char[][] tab = readFile();
        char[] slowoRoznorodneMax = new char [100];
        int roznorodnoscMax = 0;
        int index = -1;

        int y=0;
        while(y<1000) {
            char[] slowo = new char [ tab[y].length ];
            System.arraycopy(tab[y], 0, slowo, 0, tab[y].length);

            int roznorodnosc = 0;
            for( int x=0; x<slowo.length; x++ ) {
                char znak = slowo[x];

                for(int x_2=0; x_2<slowo.length; x_2++) {
                    if( znak==' ') {
                        znak = '#';
                        break;
                    }
                    if( znak != slowo[x_2] && znak!='#' && znak!=' ') {
                        roznorodnosc++;
                        break;
                    }
                }

                for(int x_2=0; x_2<slowo.length; x_2++) {
                    if( znak == slowo[x_2] ) {
                        slowo[x_2] = '#';
                    }
                }


                if( roznorodnosc > roznorodnoscMax) {
                    roznorodnoscMax = roznorodnosc;
                    slowoRoznorodneMax = slowo;
                    index = y;
                }

            }
            y++;
        }
        String slowoRoznorodneMaxString ="";
        for( int i=0; i<tab[index].length; i++) {
            slowoRoznorodneMaxString += tab[index][i];
        }
        System.out.println("4.2: " + slowoRoznorodneMaxString + " roz="+roznorodnoscMax);
        return slowoRoznorodneMaxString;
    }

    public static void get_4_3() {
        char[][] tab = readFile();

        int y=0;
        while(y<1000) {
            char[] slowo = new char [ tab[y].length ];
            System.arraycopy(tab[y], 0, slowo, 0, tab[y].length);

            boolean czy10Max = true;
            for( int x=0; x<slowo.length; x++ ) {
                char znak = slowo[x];

                for(int x_2=0; x_2<slowo.length; x_2++) {
                    int odleglosc = znak - slowo[x_2];
                    odleglosc = Math.abs( odleglosc );
                    if( odleglosc > 10 ) {
                        czy10Max = false;
                        break;
                    }
                }
            }

            if( czy10Max ) {
                String slowoRoznorodneMaxString ="";
                for( int i=0; i<slowo.length; i++) {
                    slowoRoznorodneMaxString += slowo[i];
                }

                System.out.println( slowoRoznorodneMaxString );
            }
            y++;
        }
    }

}