Example: Using Socket class on a client side.

/**
 * clientSocket() method establishes a socket connection 
 * @param iHost host name like "IPServe.com"
 * @port number like 5555
 * @param iMessage request for service
 * @return response or error message if failure
 * @@author Jeff Zhuk
 */

public String clientSocket(
  String iHost, int iPort, String iMessage)
{
	try
	{
      // request a socket connection
		Socket sock = new Socket(iHost, iPort); 

		// create i/o streams from the socket
		OutputStream outStrm = sock.getOutputStream();
		InputStream inStrm = sock.getInputStream();
		DataInputStream dis = new DataInputStream(inStrm);
		DataOutputStream dos = new DataOutputStream(outStrm);

		// send iMessage to the server 
		dos.writeUTF(iMessage);

		// recieve response from the server
		String response = new String (dis.readUTF());

		// close streams and socket
		dos.close();
		dis.close();

		return response;
	}
	catch (Exception e)
	{
		return ("ERR! Connection failure: " + e);
	}
}
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