Java Language Tutorial => Reading a file using BufferedInputStream

Example

Reading file using a BufferedInputStream generally faster than FileInputStream because it maintains an internal buffer to store bytes read from the underlying input stream.

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;


public class FileReadingDemo {

    public static void main(String[] args) {
        String source = "hello.txt";
        
        try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream(source))) {
            byte data;
            while ((data = (byte) bis.read()) != -1) {
                System.out.println((char) data);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

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Java Language File I/O Reading a file using BufferedInputStream

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