Java IO Tutorial - Java RandomAccessFile.getFD()

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Syntax

RandomAccessFile.getFD() has the following syntax.

public final FileDescriptor getFD()    throws IOException

Example

In the following code shows how to use RandomAccessFile.getFD() method.

/*from  ww  w. j  a va 2 s  .  c  o  m*/

import java.io.*;

public class Main {

   public static void main(String[] args) {
      try {
         RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

         raf.writeUTF("java2s.com Hello World");

         // set the file pointer at 0 position
         raf.seek(0);

         // read and print the contents of the file
         System.out.println(raf.readUTF());

         // return the file descriptor of the stream
         System.out.println(raf.getFD());

         // close the strea and release resources
         raf.close();
      } catch (IOException ex) {
         ex.printStackTrace();
      }


   }
}

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