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BufferedReader close() method in Java with Examples

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  • Last Updated : 05 Jun, 2020
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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()


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