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Getting FileChannel from RandomAccessFile

import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.RandomAccessFile; import java.nio.ByteBuffer; import java.nio.channels.FileChannel; public class MainClass {   private static final int BSIZE = 1024;   public static void main(String[] args) throws Exception {     FileChannel fc = new RandomAccessFile("data.txt", "rw").getChannel();     fc.position(fc.size());     fc.write(ByteBuffer.wrap("Some more".getBytes()));     fc.close();   } }