I cannot see where the mistake is
package pl.codegym.task.task18.task1808;
/*
Dzielenie pliku
*/
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
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 input1 = new FileInputStream(file1);
FileOutputStream output2 = new FileOutputStream(file1);
FileOutputStream output3 = new FileOutputStream(file1);
byte[] buffer = new byte[input1.available()];
if(input1.available()%2 == 0){
while (input1.available() > 0){
int count = input1.read(buffer);
output2.write(buffer, 0, count/2);
output3.write(buffer, count/2, count/2);
}
}
else{
while (input1.available() > 0){
int count = input1.read(buffer);
output2.write(buffer, 0, count/2 + 1);
output3.write(buffer, count/2 + 1, count/2);
}
}
input1.close();
output2.close();
output3.close();
}
}