ObjectInputStream available() method in Java with examples

The available() method of the ObjectInputStream class in Java returns the number of bytes that can be read without blocking the stream.

Syntax:

public int available()

Parameters: This method does not accept any parameter.



Return Value: This method returns the number of available bytes.

Below program illustrate the above method:

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to illustrate
// the above method
  
import java.io.*;
  
public class GFG {
    public static void main(String[] args) throws Exception
    {
  
        FileOutputStream out
            = new FileOutputStream("gopal.txt");
        ObjectOutputStream out1
            = new ObjectOutputStream(out);
  
        // write something in the file
        out1.writeUTF("Geeks For Geeks");
  
        // Flushes the Stream
        out1.flush();
  
        // Closes the stream
        out1.close();
  
        // create an ObjectInputStream
        // for the file we created before
        ObjectInputStream example
            = new ObjectInputStream(
                new FileInputStream(
                    "gopal.txt"));
  
        // Print the number of bytes available
        System.out.println(example.available());
        example.close();
    }
}

chevron_right


Output:

Reference: https://docs.oracle.com/javase/10/docs/api/java/io/ObjectInputStream.html#available()



My Personal Notes arrow_drop_up

The function of education is to teach one to think intensively and to think critically

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.