Why should we use the "write" methods in filechannel while they already exist in RandomAccessFile

Question

This is my code, which uses FileChannel to write to the file:

package logging;

import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Test {

    public static void main(String args[]){
        try {  

            RandomAccessFile rf = new RandomAccessFile("C:\\Users\\kalyan\\Desktop", "rw");
            FileChannel fc = rf.getChannel();
            ByteBuffer byteBuffer = ByteBuffer.allocate(1024);
            byteBuffer.putChar('a');

            while(byteBuffer.hasRemaining()) {
                fc.write(byteBuffer); //usig filechannel to write to the file
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

In the above example, I am using FileChannel's write method to write to the file, i.e., fc.write.

Why shouldn't we use rf.write, which already exists in RandomAccessFile?

Answer 1

there's no reason not to use the write() methods which exist on RandomAccessFile. if you happen to be interacting with code which requires a WritableByteChannel, however, you would want to use the FileChannel instead of RandomAccessFile.