Java For Dummies Quick Reference

BufferedWriter Class

Package: java.io

The BufferedWriter class connects to a FileWriter but adds output buffering.

In most cases, you won’t use methods of this class directly. Instead, you’ll use this class to connect to a PrintWriter, which has more useful methods for writing output data to a character stream. As a result, this section shows only the constructor for the BufferedWriter class and not its methods. For more information, see PrintWriter Class.

The BufferedWriterStream class is one of many Java I/O classes that use streams. For more information, see Streams (Overview).

Constructor

Constructor	Description
BufferedWriter (Writer out)	Creates a buffered reader from any object that extends the Writer class. Typically, you pass this constructor a FileWriter object.

The following example shows how to create a BufferedWriter object that connects to a text file:

File f;

FileWriter fwriter;

BufferedWriter bwriter;

f = new File(“myfile.txt”);

fwriter = new FileWriter(f);

bwriter = new BufferedWriter(fwriter);