Java示例-创建一个套接字Socket

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;

public class Main {
   public static void main(String[] args) {
      try {
         InetAddress addr = InetAddress.getByName("78.125.67.99");
         Socket theSocket = new Socket(addr, 80);
         System.out.println("Connected to "
            + theSocket.getInetAddress()
            + " on port " + theSocket.getPort() + " from port "
            + theSocket.getLocalPort() + " of "
            + theSocket.getLocalAddress());
      } catch (UnknownHostException e) {
         System.err.println("I can't find " + e  );
      } catch (SocketException e) {
         System.err.println("Could not connect to " +e );
      } catch (IOException e) {
         System.err.println(e);
      }
   }
}