пункт 3
package com.javarush.task.task18.task1802;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
/*
Минимальный байт
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
FileInputStream inputStream = new FileInputStream(fileName);
int minByte = 255;
while (inputStream.available() > 0) {
int data = inputStream.read();
if (data < minByte) {
minByte = data;
}
inputStream.close();
System.out.println(minByte);
}
}
}