Java GUI programming to realize online chat room

introduction

Integrated application of Java GUI programming and network programming to achieve a chat room software that can support multiple groups of users to use at the same time. The chat room has a friendly GUI interface and uses C / S mode to support multiple users to use at the same time. Users can choose to join or create a room and send messages (text and pictures) to other users in the room

major function

The functions of the client mainly include the following functions:

The functions of the server mainly include:

framework

The whole program adopts C / s design architecture, which is divided into a server and multiple clients. The server opens a port to all open clients. The client connects to the port and sends and receives information. The server maintains the client group internally and uses a sub thread to send and receive information for each client

Design of basic classes

User class

Room class

Roomlist class

Server

Server

ServerThread

client

Client

ClientThread

Icondialog (select expression interface)

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