What can be wrong? Fileinpuststream and bufferedReader are closed.
package pl.codegym.task.task13.task1318;
import java.io.*;
import java.util.Scanner;
/*
Wczytywanie pliku
*/
public class Solution {
public static void main(String[] args) throws IOException {
Scanner sc=new Scanner(System.in);
String fileName=sc.nextLine();
FileInputStream fileInputStream=new FileInputStream(fileName);
BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(fileInputStream));
String line;
while ((line = bufferedReader.readLine()) != null) {
System.out.println(line);
}
bufferedReader.close();
fileInputStream.close();
}
}