private static void showMenu(BufferedReader br, ServiceInterface obj,
			Scanner cs) throws IOException{
		// TODO Auto-generated method stub
		System.out.println("1 Register");
		System.out.println("2 Login");
		System.out.println("0 Exit");
		
		
		int val = cs.nextInt();
		
		if(val ==0) 
			System.exit(0);
		else if(val ==1)
			register(br, obj, cs);
		else if(val==2)
			login(br, obj, cs);
		else
			System.out.println("Wrong choice");
		
	}