Всё работает, но валик не пускает
package com.javarush.task.task18.task1805;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.*;
/*
Сортировка байт
*/
public class Solution {
public static void main(String[] args) throws Exception {
Scanner scanner = new Scanner(System.in);
String name = scanner.nextLine();
FileInputStream fileInputStream = new FileInputStream(name);
Set<Integer> list = new TreeSet<>();
int i = fileInputStream.read();
while (fileInputStream.available() > 0) {
list.add(i);
i = fileInputStream.read();
}
for (int a : list){
System.out.print(a + " ");
}
fileInputStream.close();
scanner.close();
}
}