OnJava8-Examples/newio/TransferTo.java
2015-12-15 11:47:04 -08:00

24 lines
758 B
Java

// newio/TransferTo.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Using transferTo() between channels
// {Args: TransferTo.java TransferTo.txt}
import java.nio.channels.*;
import java.io.*;
public class TransferTo {
public static void main(String[] args) throws Exception {
if(args.length != 2) {
System.out.println("arguments: sourcefile destfile");
System.exit(1);
}
FileChannel
in = new FileInputStream(args[0]).getChannel(),
out = new FileOutputStream(args[1]).getChannel();
in.transferTo(0, in.size(), out);
// Or:
// out.transferFrom(in, 0, in.size());
}
}