не проходит 5 условие
по логике вроде все должно работать
package com.javarush.task.task18.task1819;
import java.io.*;
/*
Объединение файлов
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String file1 = reader.readLine();
String file2 = reader.readLine();
FileInputStream fileInputStream1 = new FileInputStream(file1);
byte[] bytes = new byte[fileInputStream1.available()];
while(fileInputStream1.available() > 0){
fileInputStream1.read(bytes);
}
fileInputStream1.close();
FileInputStream fileInputStream2 = new FileInputStream(file2);
FileOutputStream fileOutputStream = new FileOutputStream(file1,true);
while (fileInputStream2.available() > 0){
int c = fileInputStream2.read();
fileOutputStream.write(c);
}
for (int i = 0; i < bytes.length; i++) {
fileOutputStream.write(bytes[i]);
}
fileInputStream2.close();
fileOutputStream.close();
}
}