Не могу найти свою ошибку
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));
String file1 = reader.readLine();
String file2 = reader.readLine();
String file3 = reader.readLine();
FileInputStream fileInputStream = new FileInputStream(file1);
FileOutputStream fileOutputStream1 = new FileOutputStream(file2);
FileOutputStream fileOutputStream2 = new FileOutputStream(file3);
int parametr;
if (fileInputStream.available()%2 == 0){
parametr = fileInputStream.available()/2;
} else {
parametr = fileInputStream.available()/2 + 1;
}
while (fileInputStream.available() > 0){
if(fileInputStream.available() >= parametr){
fileOutputStream1.write(fileInputStream.read());
} else fileOutputStream2.write(fileInputStream.read());
}
fileInputStream.close();
fileOutputStream1.close();
fileOutputStream2.close();
}
}