J2se basics: 12. Io stream Programming

Tag: Io

Inheritance System:

1: byte stream

All streams ending with streams are byte streams. Byte streams are used to read binary data.

2: Ghost stream

All ends with reader/writer.

Write

Append (char C): Write character
Write (char [] cbuf)
Write (string Str)
Write (int c)

Flush ()
Close ()

Filewrite (); used to operate files.

Bufferwriter ();

Stream with buffer

Newline (): enter a line break.

Reader

Filereader

Bufferreader
Readline ();

3: note the following when using word throttling and text streaming:

1: byte streams and byte streams are read by one byte or one character by default.

2: If a byte array or character array is used, remember to control the number of bytes or characters that are last read.

3: if low-level and advanced streams are used, close the advanced stream first, and then close the low-level stream.

Conversion between byte stream and byte stream

Inputstreamreader: converts a byte input stream to a character input stream.

Outputstreamwriter: converts byte output into character output streams.

Inputstremreader: belongs to the bytes stream.

How to Use stream to read configuration files

Configuration file:
Write the dynamically changed data in the program into the file, and the program dynamically obtains the content in the file.

This type of file is the configuration file.


INI:

Properties:

XML:

J2se basics: 12. Io stream Programming