JAVA Network Programming and java Network Programming

JAVA Network Programming and java Network Programming

First, summarize the classes required in the learning process:

URL-openConnection ()

URLConnection class-connection () getInputStream ()

BufferedReader class (buffer Stream)

InputStreamReader class-(this class is used to convert InputStream into Reader)

Classes related to regular expressions

Pattern class (this class is instantiated through the Pattern Method compile to obtain the instance

For example, Pattern pattern = Pattern. compile (fill in the regular expression here );

When compile returns a type, Pattern is actually a String of the regular expression.

)

Matcher class-find () group ()(

This class is instantiated by creating a Pattern class object.

For example, pattern. matcher (the elements to be matched are filled here );

Matcher ()-return-Matcher object

)