Java.io.BufferedOutputStream class in Java

24 Jan, 2017
Java.io.BufferedInputStream class in Java
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.
Fields
protected byte[] buf: The internal buffer where data is stored.
protected int count: The number of valid bytes in the buffer.
Constructor and Description
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.
Methods:
void flush() : Flushes this buffered output stream.Syntax :public void flush()
           throws IOException
Overrides:
flush in class FilterOutputStream
Throws:
IOException

Syntax :public void flush()
           throws IOException
Overrides:
flush in class FilterOutputStream
Throws:
IOException

void write(byte[] b, int off, int len) : Writes len bytes from the specified byte array starting at offset off to this buffered output stream.Syntax :
Parameters:
b - the data.
off - the start offset in the data.
len - the number of bytes to write.
Throws:
IOException

Syntax :
Parameters:
b - the data.
off - the start offset in the data.
len - the number of bytes to write.
Throws:
IOException

void write(int b) : Writes the specified byte to this buffered output stream.Syntax :
Parameters:
b - the byte to be written.
Throws:
IOException

Syntax :
Parameters:
b - the byte to be written.
Throws:
IOException

Program:
//Java program demonstrating BufferedOutputStream  import java.io.*;  class BufferedOutputStreamDemo{    public static void main(String args[])throws Exception    {        FileOutputStream fout = new FileOutputStream("f1.txt");                  //creating bufferdOutputStream obj        BufferedOutputStream bout = new BufferedOutputStream(fout);          //illustrating write() method        for(int i = 65; i < 75; i++)        {            bout.write(i);        }                  byte b[] = { 75, 76, 77, 78, 79, 80 };        bout.write(b);          //illustrating flush() method        bout.flush();                  //illustrating close() method        bout.close();        fout.close();    }}
Output :
ABCDEFGHIJKLMNOP
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