Io Stream (FileWriter)

/*

* Character Stream features:

* Since IO stream is used to manipulate data. The most common form of data is: file

* Then, you need to create a file on your hard disk and write some text data

*/

Import java.io.*;

public class FileWriter

{

public static void Main (string[] args) throws IOException

{

/*

* Create an FileWriter object that must be explicitly manipulated when initialized.

* Moreover, the file will be created to the specified directory, if the directory already has the same name file, will be overwritten

* In fact, the step is to clear the destination of the data to be stored

*/

FileWriter fw= New FileWriter ("Demo.txt");

Invokes the writer method, writes a string to the stream

Fw.write ("ABCDE");

/*

* Refreshes buffered data in stream objects and brushes the data to the destination

*/

Fw.flush ();

/*

* The stream resource is closed, but the data in the internal buffer is flushed once before it is closed

* Swipe the data to the destination

* and flush difference: After flush refreshes, the stream can continue to be used, and when close is refreshed, the stream is closed

*/

Fw.clone ();

}

}

Io Stream (FileWriter)