In Java, we can use a buffered input class for reading input from various sources such as files, network connections, and input streams.
BufferedReader Class
The BufferedReader Class available in the java.io package, is a crucial component for input stream reading in Java. The main advantage of BufferedReader is its ability to buffer input, which means it can read a chunk of data from the input source and store it in memory for faster access.
BufferedReader Constructor
BufferedReader br = new BufferedReader(Reader r);
We can use this constructor to construct a BufferedReader object with a specified Reader, making it suitable for character-based input operation.
BufferedReader br = new BufferedReader(Reader r, int bufferSize);
This constructor allows us to define a custom buffer size.
BufferedReader Method
Some important methods of BufferedReader class-
int read()
public int read()
throws java.io.IOException
This method reads a single character from the input source and returns it’s ASCII value.
void close()
public void close()
throws java.io.IOException
This method closes the BufferedReader and releases any associated resource.
long skip(long n )
public long skip(long n ) throws java.io.IOException
This method skips over and discards n character from the input source.
String readLine()
public String readLine()
throws java.io.IOException
This method reads a line of text from an input source, removes a new line character, and returns the line as a String. Return null
at the end of Stream.
BufferedReader Example
import java.io.*;
public class BufferedReaderExample {
public static void main(String[] args) throws IOException {
FileReader fileReader = new FileReader("java.txt");
BufferedReader br = new BufferedReader(fileReader);
String line;
while ((line = br.readLine())!=null){
System.out.println(line);
}
br.close();
}
}
![](https://thecodedata.com/wp-content/uploads/2023/08/image-11.png)
Note- When we close BufferedReader automatically underline FileReader will be closed.
The most enhanced reader in Java to read character data from the file is BufferedReader.
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