Хелп
package com.javarush.task.task18.task1808;
import java.io.*;
/*
Разделение файла
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
FileInputStream fis = new FileInputStream(reader.readLine());
FileOutputStream fos1 = new FileOutputStream(reader.readLine());
FileOutputStream fos2 = new FileOutputStream(reader.readLine());
if (fis.available() > 0) {
byte[] byteArray = new byte[fis.available()];
fis.read(byteArray);
int arrayLength = byteArray.length;
if (arrayLength % 2 == 0) {
fos1.write(byteArray, 0, (arrayLength / 2) - 1);
fos2.write(byteArray, arrayLength / 2, byteArray.length - 1);
} else {
fos1.write(byteArray, 0, arrayLength / 2);
fos2.write(byteArray, (arrayLength / 2) + 1, byteArray.length - 1);
}
}
reader.close();
fis.close();
fos1.close();
fos2.close();
}
}