Java.io.BufferedOutputStream Class

Introduction

The Java.io.BufferedOutputStream class implements a buffered output stream. By setting up such an output stream, an application can write bytes to the underlying output stream without necessarily causing a call to the underlying system for each byte written.

Class declaration

Following is the declaration for Java.io.BufferedOutputStream class:

public class BufferedOutputStream
   extends FilterOutputStream

Field

Following are the fields for Java.io.BufferedOutputStream class:

• protected byte[] buf -- This is the internal buffer where data is stored.
• protected int count -- This is the number of valid bytes in the buffer.
• protected OutputStream out -- This is the underlying output stream to be filtered.

Class constructors

S.N.	Constructor & Description
1	BufferedOutputStream(OutputStream out) This creates a new buffered output stream to write data to the specified underlying output stream.
2	BufferedOutputStream(OutputStream out, int size) This creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.

Class methods

S.N.	Method & Description
1	void flush() This method flushes this buffered output stream.
2	void write(byte[] b, int off, int len) This method writes len bytes from the specified byte array starting at offset off to this buffered output stream.
3	void write(int b) This method writes the specified byte to this buffered output stream.

Methods inherited

This class inherits methods from the following classes:

• Java.io.FilterOutputStream
• Java.io.Object