Что не так?
package com.javarush.task.task19.task1906;
/*
Четные символы
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fname1,fname2;
fname1 = reader.readLine();
fname2 = reader.readLine();
FileReader inputStream = new FileReader(fname1);
FileWriter outputStream = new FileWriter(fname2);
for (int i = 1; true; i++) {
int buf = inputStream.read();
if(!inputStream.ready()) break;
if(i%2 == 0) outputStream.write(buf);
}
reader.close();
inputStream.close();
outputStream.close();
}
}