Save string to a file FileChannel in Java

// w  w  w  . j  av  a  2 s.c  o  m
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Main {
  private static final int BSIZE = 1024;

  public static void main(String[] args) throws Exception {

    FileChannel fc = new FileOutputStream("main.java").getChannel();
    fc.write(ByteBuffer.wrap("Some text ".getBytes()));
    fc.close();


    fc = new RandomAccessFile("main.java", "rw").getChannel();
    fc.position(fc.size()); // Move to the end
    fc.write(ByteBuffer.wrap("Some more".getBytes()));
    fc.close();


    fc = new FileInputStream("main.java").getChannel();
    ByteBuffer buff = ByteBuffer.allocate(BSIZE);
    fc.read(buff);
    buff.flip();
    while (buff.hasRemaining()){
      System.out.print((char) buff.get());
      }
  }
}