Java Foundation 16th Day Summary

String.getbyte ("CharSet");//String encoding

New String (, Bytes, "charset");//decoding

Use the Bin/native2ascii tool provided by the JDK to implement Chinese transcoding

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Create a text file (GBK encoding, Notepad recommended)

1.txt

You ABC good, China!

2. Via cmdnative2ascii-encoding gb2312 1.txt 2.txt

Socket communication

The main task of server is to listen

UDP Subscriber Datagram Protocol user Datapram protocal,

UDP is simple to operate and requires less supervision by people

One end of a bidirectional link is called a socket

The socket is made up of an IP and a port number

Socket based TCP vs. IP protocol

Java Foundation 16th Day Summary