Java IO Tutorial - Java RandomAccessFile.readByte()

Syntax

RandomAccessFile.readByte() has the following syntax.

public final byte readByte()   throws IOException

Example

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

//from  www  .  j  av a 2 s.co m

import java.io.*;

public class Main {

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

         // write something in the file
         raf.writeUTF("Hello World from java2s.com");

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

         // read byte
         System.out.println(raf.readByte());

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

         // write 0 at the start
         raf.write(0);

         // read byte
         System.out.println(raf.readByte());
         raf.close();
      } catch (IOException ex) {
         ex.printStackTrace();
      }

   }
}