import java.nio.channels.*;
try {
// Create channel on the source
FileChannel srcChannel = new FileInputStream("srcFileName").getChannel();
// Create channel on the destination
FileChannel dstChannel = new FileOutputStream("desFileName").getChannel();
// Copy file contents from source to destination
dstChannel.transferFrom(srcChannel, 0, srcChannel.size());
// Close the channels
srcChannel.close();
dstChannel.close();
} catch (IOException e) {
}