一、客户端读/写

Socket s = new Socket("127.0.0.1",5000);
InputStreamReader stream = new InputStreamReader(s.getInputStream());
BufferedReader reader = new BufferedReader(stream);
String message = reader.readLine();

PrintWriter writer = new PrintWrite(s.getOutputStream());//写到客户端上
writer.println("Send:");

ServerSocket s = new ServerSocket(5000);
Socket sock = s.accept();

public class MyRunnable implements Runnalbe{
@override
public void run(){...} 
}
class ThreadTest{
public static void main(String [] args){
Runnable threadJob = new MyRunnable();
Thread myThread = new Thread(threadJob);
myThread.start();
}
}

Thread.sleep(2000);//一定程度上可以让线程按照预想的顺序执行