package com.company;

import java.io.FileWriter;
import java.io.IOException;
import java.util.Random;

public class Main {
    public static void main(String[] args) throws IOException {
        int tab[][] = new int[10][10];
        Random rand = new Random();
        //zapełnienie tablicy
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab.length; j++) {
                tab[i][j] = rand.nextInt(100);
            }
        }
        //wyświetlenie tablicy
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                System.out.print(tab[i][j] + " ");
            }
            System.out.println();
        }//zapis do pliku
        String fileName = "plik.csv";
        FileWriter fileWriter = null;
        try {
            fileWriter = new FileWriter(fileName);
            for (int i = 0; i < tab.length; i++) {
                for (int j = 0; j < tab.length; j++) {
                    fileWriter.write(tab[i][j]);
                }

            }
        } catch (IOException ex) {
            System.out.println("Problez z dostępem do pliku");
        } finally {
            if (fileWriter == null) {
                System.out.println("Problem");
            } else {
                fileWriter.close();
            }
        }

    }
}