Table of Contents
- 1 What is BufferedOutputStream in Java?
- 2 When to use BufferedOutputStream?
- 3 How do I create a ByteArrayOutputStream?
- 4 How does BufferedOutputStream write work?
- 5 What is the difference between BufferedReader and BufferedInputStream?
- 6 How do you use SequenceInputStream?
- 7 Is ByteArrayOutputStream thread safe?
What is BufferedOutputStream in Java?
BufferedOutputStream(OutputStream out) Creates a new buffered output stream to write data to the specified underlying output stream. BufferedOutputStream(OutputStream out, int size) Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.
When to use BufferedOutputStream?
BufferedOutputStream, is used to capture bytes written to the BufferedOutputStream in a buffer, and write the whole buffer in one batch to an underlying Java OutputStream for increased performance.
What is BufferedInputStream and BufferedOutputStream in Java?
BufferedInputStream and BufferedOutputStream use an internal array of byte, also known as buffer, to store data while reading and writing, respectively. Buffered streams are typically more efficient than similar non-buffered streams.
How do I create a ByteArrayOutputStream?
Create a ByteArrayOutputStream
- // Creates a ByteArrayOutputStream with default size ByteArrayOutputStream out = new ByteArrayOutputStream();
- // Creating a ByteArrayOutputStream with specified size ByteArrayOutputStream out = new ByteArrayOutputStream(int size);
- ByteArrayOutputStream output = new ByteArrayOutputStream();
How does BufferedOutputStream write work?
The BufferedOutputStream maintains an internal buffer of 8192 bytes. During the write operation, the bytes are written to the internal buffer instead of the disk. Once the buffer is filled or the stream is closed, the whole buffer is written to the disk.
Does ByteArrayOutputStream need to be closed?
It is just unnecessary. It is often necessary to close an output pipeline that ends in a ByteArrayOutputStream , but this is not because of memory usage or GC considerations. Memory is used (at least) as long as the ByteArrayOutputStream object is reachable.
What is the difference between BufferedReader and BufferedInputStream?
The main difference between BufferedReader and BufferedInputStream is that BufferedReader reads characters (text), whereas the BufferedInputStream reads raw bytes. The Java BufferedReader class is a subclass of the Java Reader class, so you can use a BufferedReader anywhere a Reader is required.
How do you use SequenceInputStream?
SequenceInputStream example that reads data using enumeration
- package com.javatpoint;
- import java.io.*;
- import java.util.*;
- class Input2{
- public static void main(String args[])throws IOException{
- //creating the FileInputStream objects for all the files.
- FileInputStream fin=new FileInputStream(“D:\\a.txt”);
How do you write BufferedOutputStream?
Create a BufferedOutputStream BufferedOutputStream package first. Once we import the package here is how we can create the output stream. // Creates a FileOutputStream FileOutputStream file = new FileOutputStream(String path); // Creates a BufferedOutputStream BufferedOutputStream buffer = new BufferOutputStream(file);
Is ByteArrayOutputStream thread safe?
That said, reading the source of ByteArrayOutputStream, all its methods are already synchronized, so it’s already thread-safe.