edjpgcom is a free Windows application that allows you to change (or add) a JPEG commment in a JPEG file. That's all it does. All other fields in a JFIF or Exif file are left untouched. It even keeps the filesystem timestamp! It's based on the rdjpg
public class ChatClient extends JFrame implements ActionListener{ String ip = "127.0.0.1";//连接到服务端的ip地址 int port = 8888;//连接到服务端的端口号 String userName = "匆匆过客";//用户名 int type = 0;//0表示未连接,1表示已连接 Image icon;//程序图标 JComboBox combobox;//选择发送消息的接受者 JTextA