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

class Program4
{
    public static void main(String[] args)
    {
        String ch;
        String Filename = "/home/lab/po2/9/Desktop";
        Random rand = new Random();
        String alphabet = "qwertyuiopasdfghjklzxcvbnm1234567890~!@#$%^&*()_+<>?:|{}";
        for (int i=0; i<1000; i++)
        {
            BufferedWriter bw = null;
            FileWriter fw = null;
            try
            {
                ch=String.valueOf(alphabet.charAt(rand.nextInt(alphabet.length())));
                fw = new FileWriter(Filename);
                bw = new BufferedWriter(fw);
                bw.write(ch);
            }
            catch (IOException e)
            {
                System.out.println("Blad zapisu!");
                System.exit(0);
            }
        }
        }
}