The readByte() method of the ObjectInputStream class in Java is used to read the 8 bit (byte).
Syntax:
public byte readByte()
Parameters: This method does not accept any parameter.
Return Value: This method returns the 8 bit byte read
Errors and Exceptions: The function throws three exceptions which is described below:
- EOFException: The exception is thrown if the end of file is reached.
- IOException: The exception is thrown if an I/O error has occurred.
Below program illustrate the above method:
Program 1:
Java
// Java program to illustrate// the above method import java.io.*; public class GFG { public static void main(String[] args) throws IOException { byte[] array = { 1, 34, 23, 42, 69, 22 }; try { // create new byte // array input stream InputStream input = new ByteArrayInputStream(array); // create data input stream DataInputStream output = new DataInputStream(input); // readBoolean till the // data available to read while (output.available() > 0) { // read one single byte byte bt = output.readByte(); // print the byte System.out.print(bt + " "); } } catch (Exception ex) { } }} |
Output:
Program 2:
Java
// Java program to illustrate// the above method import java.io.*; public class GFG { public static void main(String[] args) throws IOException { byte[] array = { 'G', 'e', 'e', 'k', 's', 'f', 'o', 'r', 'g', 'e', 'e', 'k', 's' }; try { // create new byte // array input stream InputStream input = new ByteArrayInputStream(array); // create data input stream DataInputStream output = new DataInputStream(input); // readBoolean till the // data available to read while (output.available() > 0) { // read one single byte byte bt = output.readByte(); // print the byte System.out.print(bt + " "); } System.out.println(); System.out.println(); } catch (Exception ex) { } }} |
Output:
Reference:
https://docs.oracle.com/javase/10/docs/api/java/io/ObjectInputStream.html#readByte()
