Java IO Tutorial - Java RandomAccessFile.read(byte[] b)

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Syntax

RandomAccessFile.read(byte[] b) has the following syntax.

public int read(byte[] b)  throws IOException

Example

In the following code shows how to use RandomAccessFile.read(byte[] b) method.

//from w w  w  . ja va  2s .c o  m

import java.io.*;

public class Main {

   public static void main(String[] args) {
      try {
         byte[] b1 = {1, 2, 3};
         byte[] b2 = {1, 2, 3, 4, 5, 6, 7, 8};

         
         RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

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

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

         // read the first 8 bytes and print the number of bytes read
         System.out.println(raf.read(b1));

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

         // read the first 8 bytes and print the number of bytes read
         System.out.println(raf.read(b2));
         raf.close();
      } catch (IOException ex) {
         ex.printStackTrace();
      }

   }
}

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