安装JDK、配置环境变量，打开Eclipse导入ch04项目，运行server.FishServer类启动服务器端，运行java client.SwimFish类启动客户端。注意，同时在多台机上运行客户端才能显示出网络游鱼的效果，在同一台机上打开多个客户端窗口不能看到该效果。-Install JDK, configure the environment variable, open Eclipse project import ch04, start the server running server.FishServer class, run java client.SwimFish classes start the client. Note that while running on multiple machines on the network client can show the effect of fish in the open on the same machine multiple client windows can not see the results.