how to add a server thread

Below is code that implements a thread on a server when a client connects. Im trying to modify the code as to accept a connection from two clients and handle each connection(client) in a different thread.

//this is the actual code in the server
 serve = new ServerSocket( 5004, 1000 ) ;
   
 new ClientThread(serve.accept());

   }
   catch( IOException e )
  {
   e.printStackTrace() ;
  }

 } //end while

class ClientThread extends Thread {
   private Socket socket;
 

   public ClientThread(Socket socket) {
     this.socket = socket;
     start();
   
   }


//this is what im trying to implement, this is not part of the code in the server
thread1 = new ClientThread(serve.accept());
thread2 = new ClientThread(serve.accept());

public ClientThread(Socket socket) {
     this.socket = socket;
    System.out.println("start");
     thread1.start();
     System.out.println("stop");
     thread2.start