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Java BufferedInputStream close() Method with Example

BufferedInputStream Class close() method: Here, we are going to learn about the close() method of BufferedInputStream Class with its syntax and example.
Submitted by Preeti Jain, on March 01, 2020

BufferedInputStream Class close() method

• close() method is available in java.io package.
• close() method is used to close this BufferedInputStream and free all other system resources linked with this stream.
• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• close() method may throw an exception at the time of the closing stream.
  IOException: This exception may throw while performing input/output operation.

Syntax:

    public void close();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void close() method of BufferedInputStream

import java.io.*;

public class demo {
    public static void main(String[] args) {
        try {
            // To open text file by using 
            // FileInputStream
            FileInputStream fis = new FileInputStream("e:/includehelp.txt");

            // By using BufferedInputStream() isto change
            // the stream fis into buff_str
            BufferedInputStream buff_str = new BufferedInputStream(fis);

            // By using available() method is to
            // return the no. of bytes to be left 
            // for reading
            Integer n_byte = buff_str.available();
            System.out.println("Left avail bytes = " + n_byte);

            // Close the stream and free
            // system resources linked with 
            // this stream buff_str, fis
            buff_str.close();
            fis.close();

            // we can't perform available() on
            // buff_str because this stream is 
            // already closed
            n_byte = buff_str.available();
        } catch (IOException ex) {
            System.out.println("buff_str: " + ex.getMessage());
        }
    }
}

Output

Left avail bytes = 42
buff_str: Stream closed