package com.zetcode;

import java.io.IOException;

import java.nio.ByteBuffer;

import java.nio.channels.Channels;

import java.nio.file.Files;

import java.nio.file.Paths;

public class SevenByteBufferChannel {

public static void main(String[] args) throws IOException {

var srcFile = Paths.get("src/resources/data.txt");

var destFile = Paths.get("src/resources/data2.txt");

try (var src = Channels.newChannel(Files.newInputStream(srcFile))) {

try (var dest = Channels.newChannel(Files.newOutputStream(destFile))) {

var buf = ByteBuffer.allocate(7);

while (src.read(buf) != -1) {

// flips the buffer from read to write

buf.flip();

while (buf.hasRemaining()) {

dest.write(buf);

}

buf.clear();

}

}

}

}

}