The Java.io BufferedOutputStream is the class used to write the bytes to the directory or file , so as to get buffered output. The Java.io BufferedOutputStream performance is little bit faster compared to other writers like writing the files into drives and in many more applications.

The Java.io BufferedOutputStream is similar to that buffered writer with tiny difference that it writes stream of bytes like data related to images, where as the buffered writer writes the characters like in the text form. The main feature of this class is to write block of characters or data at a time instead of writing data character by character like output stream.

Java.io/BufferedOutputStream class is declared below: Public class BufferedOutputStream extends FileOutputStream

Java.io/BufferedOutputStream class fields are:

• Protected OutputStream out : The field represents to be filter the output stream.
• Protected int Count : The field represents to the index to count output stream bytes.
• Protected byte [] bu : The field represents to the internal buffer where actually the data  stored.

From the following classes , methods are inherited the Java.io BufferedOutputStream class.

• Java.io.object
• Java.io.FileOutputStream

Usage of void flush() method. [c]import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.IOException; public class BufferedOutputStream { public static void main(String[] args) throws Exception { FileInputStream is = null; BufferedInputStream bis = null; ByteArrayOutputStream baos = null; BufferedOutputStream bos = null; try{ // To read data from the test.txt file then open the file input stream is = new FileInputStream("D:/test.txt"); // To convert input stream into buffered input stream bis = new BufferedInputStream(is); // creating a new byte array output stream baos = new ByteArrayOutputStream(); // creating a new buffered output stream to write byte array bos = new BufferedOutputStream(baos); int value; // the file is read till to the end while ((value = bis.read()) != -1) { bos.write(value); } // invokes flush method to force bytes to be written out to baos bos.flush(); // every byte is readed from baos for (byte b: baos.toByteArray()) { // converts byte to character char c = (char)b; System.out.print(c); } }catch(IOException e) { // if IOException occurs e.printStackTrace(); }finally { // releases all the system resources associated with this stream if(is!=null) is.close(); if(bis!=null) bis.close(); if(baos!=null) baos.close(); if(bos!=null) bos.close(); } } }[/c] Output Following is the result will be displayed. [c]splessons.com[/c] Usage of void write (int b) method. [c]import java.io.BufferedOutputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; public class BufferedOutputStream { public static void main(String[] args) throws Exception { ByteArrayOutputStream baos = null; BufferedOutputStream bos = null; try{ // creating new byte array baos = new ByteArrayOutputStream(); // creating new BufferedOutputStream with baos bos = new BufferedOutputStream(baos); // Initialize the integer int b = 83; // write to stream bos.write(b); // force the byte for written to baos bos.flush(); // To convert ByteArrayOutputStream to bytes byte[] bytes = baos.toByteArray(); // print the byte System.out.println(bytes[0]); }catch(IOException e) { // if I/O error occurs. e.printStackTrace(); }finally { // releases all the system resources associated with this stream if(baos!=null) baos.close(); if(bos!=null) bos.close(); } } }[/c] Output Following is the result will be displayed.

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• The buffered output stream is the class used to write the bytes to the directory or file , so as to get buffered output.
• The buffered output stream performance is little bit faster compared to other writers like writing the files into drives and in many more applications.
• The main feature of this class is to write block of characters or data at a time instead of writing data character by character like output stream.