<b>(a)</b> public class TCPMapper extends ConcurrentServer <b>(b)</b> public void handleSession(Socket socketFromClient) <b>(c)</b> socketToServer = new Socket(proxyHost, proxyPort);
Figure 7: (a) Extending a base class called ConcurrentServer; (b) declaring a method called handleSession() in the TCPMapper class; (c) setting up another connection.