import  java.io.IOException;
 import  java.io.InputStream;
 import  java.io.OutputStream;
 import  java.net.ServerSocket;
 import  java.net.Socket;

 public   class  ServThread 
{
	 public  ServThread() 
	{
		Main();
	}
	
	 public   void  Main()
	{
		 try 
		{
			ServerSocket serverSocket =  new  ServerSocket( 7654 );
			 while (true)
			{
				Socket incomingSocket = serverSocket.accept();
				Thread thread =  new  Thread( new  ClientTheadHandler(incomingSocket));
				thread.start();
			}
		}
		 catch  (IOException e)
		{
			e.printStackTrace();
		}
	}
}
 class  ClientTheadHandler  implements  Runnable
{

	 private  Socket clientSocket;
	 public  ClientTheadHandler(Socket clientSocket) 
	{
		 this .clientSocket = clientSocket;
	}
	
	 public   void  run() 
	{
		 try 
		{
			 try 
			{
				InputStream inputStream = clientSocket.getInputStream();
				OutputStream outputStream = clientSocket.getOutputStream();
				 boolean  disconnect=false;
				 while (!disconnect)
				{
					// тут работа с клиентом
				}
			}
			 finally 
			{
				clientSocket.close();
			}
		}
		 catch (IOException e){}
	}
	
}