Во второй файл записывается какая-то дичь...

package com.javarush.task.task18.task1820; import java.io.*; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Scanner; /* Округление чисел */ public class Solution { public static void main(String[] args) throws IOException { InputStreamReader inputStreamReader = new InputStreamReader(System.in); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); // String fileNameInput = bufferedReader.readLine(); // BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream); Scanner scanner1 = new Scanner(System.in); String file = scanner1.nextLine(); Scanner scanner2 = new Scanner(new File(file)); String fileNameOutput = bufferedReader.readLine(); FileOutputStream fileOutputStream = new FileOutputStream(fileNameOutput); String[] split; int index = 0; double temp; int temp2 = 0; while (scanner2.hasNextLine()) { split = scanner2.nextLine().split(" "); while (true) { try { temp = Double.parseDouble(split[index]); } catch (ArrayIndexOutOfBoundsException e) { break; } if (temp > 0) { temp2 = (int) Math.round(temp); } else if (temp < 0) { temp2 = (int) Math.round(temp); } index++; fileOutputStream.write((byte)temp2); } } bufferedReader.close(); fileOutputStream.close(); // byte[] b = bufferedInputStream.readAllBytes(); // Byte[] bytes = new Byte[b.length]; // for (int i = 0; i < bytes.length; i++) { // bytes[i] = b[i]; // } // ArrayList<Byte> aByte = new ArrayList<>(Arrays.asList(bytes)); // System.out.println(aByte); } }