Intermediate Java(49) - Beginning the Client Messaging System

創建新的項目，並創建兩個類class稱為Client 和 ClientTest

import java.io.*;

import java.net.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Client extends JFrame{

private JTextField userText;

private JTextArea chatwindow;

private ObjectOutputStream output;

private ObjectInputStream input;

private String message = "";

private String serverIP;

private Socket connection;

}