Java FileChannel Copy copyFile(File sourceFile, File destFile)

Description

Copy file from a path to another.

License

Open Source License

Parameter

Parameter	Description
sourceFile	the source file
destFile	the destination file

Exception

Parameter	Description
IOException	Signals that an I/O exception has occurred.

Declaration

public static void copyFile(File sourceFile, File destFile) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class Main {
    /**/*  ww w . j  a  va 2s  .  c  o  m*/
     * Copy file from a path to another.
     *
     * @param sourceFile the source file
     * @param destFile the destination file
     * @throws IOException Signals that an I/O exception has occurred.
     */
    public static void copyFile(File sourceFile, File destFile) throws IOException {
        if (!destFile.exists()) {
            destFile.createNewFile();
        }
        FileInputStream fin = new FileInputStream(sourceFile);
        try {
            FileOutputStream fout = new FileOutputStream(destFile);
            try {
                FileChannel source = fin.getChannel();
                try {
                    FileChannel destination = fout.getChannel();
                    try {
                        long count = 0;
                        long size = source.size();
                        while ((count += destination.transferFrom(source, count, size - count)) < size)
                            ;
                    } finally {
                        destination.close();
                    }
                } finally {
                    source.close();
                }
            } finally {
                fout.close();
            }
        } finally {
            fin.close();
        }
    }
}

Related

1. copyFile(File sourceFile, File destFile)
2. copyFile(File sourceFile, File destFile)
3. copyFile(File sourceFile, File destFile)
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7. copyFile(File sourceFile, File destinationFile)
8. copyFile(File sourceFile, File destinationFile)
9. copyFile(File sourceFile, File destinationFile)