Java.io.ObjectInputStream.readByte() Method

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Description

The java.io.ObjectInputStream.readByte() method reads an 8 bit byte.

Declaration

Following is the declaration for java.io.ObjectInputStream.readByte() method.

public byte readByte()

Parameters

NA

Return Value

This method returns the 8 bit byte read.

Exception

• EOFException − If end of file is reached.

• IOException − If an I/O error has occurred.

Example

The following example shows the usage of java.io.ObjectInputStream.readByte() method.

package com.tutorialspoint;

import java.io.*;

public class ObjectInputStreamDemo {
   public static void main(String[] args) {
      byte b = 'F';
      
      try {
         // create a new file with an ObjectOutputStream
         FileOutputStream out = new FileOutputStream("test.txt");
         ObjectOutputStream oout = new ObjectOutputStream(out);

         // write something in the file
         oout.writeByte(b);
         oout.writeByte('A');
         oout.flush();

         // create an ObjectInputStream for the file we created before
         ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

         // read and print a byte
         System.out.println("" + (char) ois.readByte());

         // read and print a byte
         System.out.println("" + (char) ois.readByte());
      } catch (Exception ex) {
         ex.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

F
A