Byte buffered stream - Java

byte buffered stream:

BufferedOutputStream: byte buffered output stream.

BufferedInputStream: byte buffered input stream.

Construction method:

BufferedOutputStream(OutputStream out)

BufferedInputStream(InputStream in)

The constructor expects a stream of bytes, not a specific file or path.

The byte buffer stream only provides a buffer, and the real read and write data must rely on the basic byte stream object for operation.

copy using byte buffer

private static void demo05() throws IOException {
    
    
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream("E:\\Steve.pdf"));
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("Steve.pdf"));

    byte[] bytes = new byte[1024];
    int i = 0;
    while ((i = bis.read(bytes)) != -1) {
    
    
        bos.write(bytes, 0, i);
    }
    bos.close();
    bis.close();
}

summary:

The byte buffer stream is equivalent to a truck, and a byte stream needs to be passed in, that is, the driver to operate.

Improve efficiency through byte buffering.