Java BufferedReader close() Method

In this tutorial, we will learn about the close() method of BufferedReader class in Java. This method is used to close this BufferedReader stream and free all other system resources linked with this stream. It 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.

Syntax

This is the syntax declaration of a close() method, this method does not accept any parameter and does not return any parameter.

public void close() throws IOException  

Example 1: Close BufferedReader Instance

In this example, we are going to implement the close() method, firstly we read the required data from the file, once the data is read successfully then we call the close() method to close the BufferedReaader stream from which we read the data, it will free all other system resources linked with this stream.

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
class StudyTonight
{
	public static void main(String[] args) throws IOException 
	{ 
        FileReader fileReader  = new FileReader("E://studytonight//output.txt"); 

        BufferedReader buffReader = new BufferedReader(fileReader); 
  
        while (buffReader.ready()) 
        { 
        	char c = (char)buffReader.read();
            System.out.print(c);  
        } 
        fileReader.close();
        bufferReader.close();
	} 
}

Hello Studytonight

output.txt

Hello Studytonight

Example 1: Close FileReader Instance

Here, we have created the BufferedReader after that we read the data using the readLine() method and then we call close() method to free up all the system resources associated with it.

import java.io.BufferedReader;
import java.io.FileReader;
class StudyTonight
{
	public static void main(String[] args)  
	{ 
		try 
		{
			FileReader	fileReader = new FileReader("E://studytonight//output.txt"); 
			BufferedReader buffReader = new BufferedReader(fileReader);
			System.out.println(buffReader.readLine()); 
			fileReader.close();
			buffReader.close();			
		}
		catch(Exception e)
		{
			System.out.println("Error: "+e.toString());
		}
	} 
}

ABC

output.txt

ABC

Conclusion

In this tutorial, we learned about a close() method of BufferedReader class in Java. his method is used to close this BufferedReader stream and free all other system resources linked with this stream. It 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.