Java.io.BufferedReader Class in Java

The BufferedReader class in Java helps read text efficiently from files or user input. It stores data in a buffer, making reading faster and smoother instead of reading one character at a time.

• Faster Reading: Reads large chunks of data at once, reducing the number of read operations.
• Easy to Use: Can read text line by line using the readLine() method.

Class Declaration

public class BufferedReader extends Reader

The BufferedReader class extends the Reader class, which means it is a subclass specialized for character input with buffering capabilities.

Output:

Explanation: The program uses BufferedReader with FileReader to read text line by line from the file sample.txt. The readLine() method continues until it reaches the end of the file (null).

Constructor of BufferedReader Class

1. BufferedReader(Reader in): Creates a buffered character input stream using the specified reader.

BufferedReader br = new BufferedReader(new FileReader("file.txt"));

2. BufferedReader(Reader in, int size): Creates a buffered character input stream with a custom buffer size.

BufferedReader br = new BufferedReader(new FileReader("file.txt"), 8192);

Example: Reading Text from a File

Output:

Methods of BufferedReader Class