Home » Java programming language

Java BufferedReader readLine() Method with Example

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

BufferedReader Class readLine() method

• readLine() method is available in java.io package.
• readLine() method is used to read a line of content from this BufferedReader stream and one line ends when we use \n (newline), \r (carriage return).
• readLine() 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.
• readLine() method may throw an exception at the time of reading a line of data.

Syntax:

    public String readLine();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is String, it returns the line of content to be read from this stream.

Example:

// Java program to demonstrate the example 
// of String readLine() method of 
// BufferedReader

import java.io.*;

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

        // Instantiates InputStreamReader 
        InputStreamReader inp_r = new InputStreamReader(fis);

        // Instantiates BufferedReader 
        BufferedReader buff_r = new BufferedReader(inp_r);

        // Read a line from the stream
        String str = buff_r.readLine();
        System.out.println("buff_r.readLine(): " + str);

        fis.close();
        inp_r.close();
        buff_r.close();
    }
}

Output

buff_r.readLine(): Hello...