Io is divided into two streams: byte stream and bytes stream.

Io is divided into two streams: byte stream and bytes stream.

1. byte stream inputstream outputstream

2. Producer stream reader writer

The above four classes are all abstract classes.

Specific implementation:
The implementation of byte stream is: fileinputstream fileoutputstream
The implementation of the upload stream is: filereader filewriter

You can use inputsteamreader outputstreamwriter to convert byte streams into bytes streams.

Then process the shard stream: convert it to bufferdreader bufferedwriter, so that it has a buffer

The implementation of byte Transfer into streams is as follows:

 
Fileinputstream = new fileinputstream ("C:/text.txt"); // defines the inputstreamreader = new inputstreamreader (fileinputstream), a byte stream pointing to C:/testtxt ); // change byte stream to inputstreamreaderbufferedreader bufferedreader = new bufferedreader (inputsteamreader); // convert inputstreamreader to bufferedreader with Cache
 

Assign the read content to the character.

 
String Ss = new string (); string s; while (S = bufferedreader. Readline ())! = NULL) {SS + = s ;}
 

Example: byte streams are sent to the upstream stream, and then the upstream stream has a buffer zone.

 
Fileoutputstream = new fileoutputstream ("C:/test.txt"); // defines a byte stream that points to C:/test.txt outputstreamwriter = new outputstreamwriter (fileoutputstream ); // byte Transfer bytes stream bufferedwriter = new bufferedwriter (outputstreamwriter); // enable the bytes stream to have a buffer bufferedwriter. write (s); bufferedwriter. close (); outputstreamwriter. close (); fileoutputstream. close ();