BufferedReader close() method in Java with Examples

The close() method of BufferedReader class in Java is used to close the stream and release all the system resources associated with the stream operations.

Syntax:

public void close() 
            throws IOException

Parameters: This method does not accept any parameter.

Return value: This method does not return any value.

Exception: This method throws IOException if an I/O error occurs.

Below programs illustrate close() method in BufferedReader class in IO package:

Program 1: Assume the existence of the file “c:/demo.txt”.

// Java program to illustrate
// BufferedReader close() method

import java.io.*;
public class GFG {
    public static void main(String[] args)
        throws IOException
    {

        // Read stream file 'demo.txt'
        // containing text "GEEKSFORGEEKS"
        FileReader fileReader
            = new FileReader(
                "c:/demo.txt");

        // Convert fileReader to
        // bufferedReader
        BufferedReader buffReader
            = new BufferedReader(
                fileReader);

        // Call read() method
        while (buffReader.ready()) {
            System.out.print(
                (char)buffReader.read());
        }

        // Call close() method
        buffReader.close();
    }
}

Input:

Output:

Program 2: Assume the existence of the file “c:/demo.txt”.

// Java program to illustrate
// BufferedReader close() method

import java.io.*;
public class GFG {
    public static void main(String[] args)
        throws IOException
    {
        try {

            // Read stream file 'demo.txt'
            // containing text "GEEKSFORGEEKS"
            FileReader fileReader
                = new FileReader(
                    "c:/demo.txt");

            // Convert fileReader to
            // bufferedReader
            BufferedReader buffReader
                = new BufferedReader(
                    fileReader);

            // Call close() method
            buffReader.close();

            // Call read() method
            System.out.print(
                (char)buffReader.read());
        }
        catch (IOException e) {
            // Exception is thrown
            System.out.println(
                "BufferedReader is closed");
        }
    }
}

Input:

Output:

Reference: https://docs.oracle.com/javase/7/docs/api/java/io/BufferedReader.html#close()