How do I copy file using FileChannel class?

By Wayan in Core API, IO 2 Comments

The example below show you how to copy a file using the java.nio.channels.FileChannel class.

package org.kodejava.io;

import java.io.*;
import java.nio.channels.FileChannel;

public class FileCopy {
    public static void main(String[] args) {
        //// Define the source and target file
        File source = new File("D:/Temp/source.txt");
        File target = new File("D:/Temp/target.txt");

        // Create the source and target channel
        try (FileChannel sourceChannel = new FileInputStream(source).getChannel();
             FileChannel targetChannel = new FileOutputStream(target).getChannel()) {

            // Copy data from the source channel into the target channel
            targetChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
Wayan
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2 Comments

  1. Hello my friend.

    When I do it like your example it show to me that my path is not correct. When I check this error I found something about folder bin where Java JDK install. How can I resolve that?

    Thanks.

    Reply

    • Hi Hanan,

      I need to see your code to know what was wrong with your code. Or at least I can see the error stack trace. So can you post the code?

      Reply

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