在创建新线程时，将两个不同的对象类型映射到彼此

Question

我正在尝试设置一个多线程服务器，为每个线程创建一个图形对象。

我现在遇到的问题是，我不知道如何将图形对象映射到＆＃34;它＆＃34;＆＃34;线。

基本上我在<{1}}函数中尝试是调用负责创建球的类addBallToThread。 我想将这个球映射到该特定线程，然后在线程关闭时最终移除球。

如果有人可以向我展示一个这方面的示例，或者帮助我使用我非常感激的现有代码。

ClientThread：

Graphics

图形：

public class ClientThread extends Thread{


    private static int numberOfClients = 0;
    protected static   ArrayList<ClientThread> allClients = new ArrayList<ClientThread>();
    //Create instance of this class for each new client^
    private final int  clientNumber = ++numberOfClients;
    private final      Socket socket;
    private final      BufferedReader in;
    private final      BufferedWriter out;
    private static     ArrayList<Graphics> Balls = new ArrayList<Graphics>();

    public ClientThread(Socket s) throws IOException {
        socket = s;
        in     = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        out    = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
        System.out.println("Thread Created For Client: "+clientNumber+"");
        System.out.println("Welcome client nr: #"+clientNumber+"");
        synchronized (this) {

            allClients.add(this); //add thread to new instance of class
            addBallToThread();    //connecting ball to thread?
        }

        start(); //starts thread, calls run
    }
    //###################### HERE ########################
    public void addBallToThread(){ 
        int totalClients = clientNumber;
        for(int i=1;i<=totalClients; ++i) {
            Balls.add((Graphics) allClients.iterator());
            //Creating one Graphics Object for every Client?
        }
    }

    public void run() {
        try {
            while (true) {
                String inline = in.readLine();
                System.out.println("BALL NR:"+Balls.size()+"CONNECTED TO: "+clientNumber);
                System.out.println("Client thread " + clientNumber + " received: " + inline);
                if (inline == null || inline.equals("quit")) break;
                System.out.println("You said :" + inline + ".");
                Iterator<ClientThread> i = allClients.iterator();
                    while (i.hasNext()) {
                        ClientThread t = i.next();
                        if (t != this)
                            System.out.print("From client " + clientNumber + ": " + inline);
                    }    
                } //while, while

            //############# IGNORE, not necessary ########### 
            System.out.println("Client thread " + clientNumber + ": exiting...");
        }
        catch(IOException e) {
            System.out.println("Client thread " + clientNumber + ": I/O error");
        }
        finally {
            try { socket.close(); }
            catch(IOException e) {
                System.out.println("Client thread " + clientNumber + ": Socket not closed!");
            }
            synchronized(this) {
                allClients.remove(allClients.indexOf(this));
            }
        } //finally
    } //run
}