// standardio/Redirecting.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// Demonstrates standard I/O redirection

import java.io.*;

public class Redirecting {

public static void main(String[] args) {

PrintStream console = System.out;

try(

BufferedInputStream in = new BufferedInputStream(

new FileInputStream("Redirecting.java"));

PrintStream out = new PrintStream(

new BufferedOutputStream(

new FileOutputStream("Redirecting.txt")))

) {

System.setIn(in);

System.setOut(out);

System.setErr(out);

new BufferedReader(

new InputStreamReader(System.in))

.lines()

.forEach(System.out::println);

} catch(IOException e) {

throw new RuntimeException(e);

} finally {

System.setOut(console);

}

}

}