На входе и на выходе пусто
package com.javarush.task.task13.task1318;
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception{
InputStream inputstream = null;
BufferedInputStream buffer = null;
BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
String file = r.readLine();
try
{
inputstream = new FileInputStream (file);
buffer = new BufferedInputStream(inputstream);
while (buffer.available()>0){
char c = (char)buffer.read();
System.out.println(c);
}
}
catch (Exception e){
e.printStackTrace();
}
finally {
inputstream.close();
buffer.close();
r.close();
}
}
}