CareerCup

public class Customer{
	
	private int userId;
	private int numberOfPersons;	
	private Location location;
	private Vehicle vehicle;
	private Queue<Message> messageQueue;

	public Customer(int userId, int number){...}
	
	public void setLocation(Location location){...}
	
	public void setVehicle(Vehicle vehicle){...}
	
	public void setNumberOfPersons(int number){...}
	
	public Location getLocation(){...}
	
	public Vehicle getVehicle(){...} 
	
	public void getNumberOfPersons(){...}
	
	public void receiveMessage(Message message){ 
		messageQueue.add(message);
	}
	
	public Message sendMessage(){		
		return messageQueue.poll();		
	}
}

public class Vehicle{
	
	private int vehicleId;	
	private Location location;	
	private int availableSeats;	
	private ArrayList<Customer> customersToPick;	
	private Queue<Message> messageQueue;
	
	public Vehicle(int vehicleId, State state){...}

	public void setSeats(int seats){...}
	
	public void setLocation(Location location){...}

	public void addCustomer(Customer person){...}
	
	public void dropCustomer(Customer person){...}
	
	public Location getLocation(){...}
	
	public Customer getNearestCustomer(){...}	
	
	public int getSeats(){...}
	
	public void receiveMessage(Message message){ 
		messageQueue.add(message);
	}
	
	public Message sendMessage(){		
		return messageQueue.poll();		
	}
	
}

public class LocationBase{
	
	private int baseId;	
	private Location location;	
	private int radius;			// the radius that the base can cover
	
	ArrayList<Customer> customers;
	ArrayList<Vehicle> vehicles;
	
	Queue<Message> messages;
	
	public LocationBase(){
		customers = new ArrayList<Customer>();
		vehicles = new ArrayList<Vehicle>();
	}
	
	// set the location for location base
	public void setLocation(Location location){...}
	
	// add a customer
	public void addCustomersInRange(Customer customer){...}	
		
	// update the locations of customers
	public void updateCustomerLocation(){...}
	
	// the customer goes out of the range
	public void removeCustomerInRange(Customer customer){...}	
	
	// add a vehicle
	public void addVehicleInRange(Vehicle v){...}
	
	// the vehicle goes out of the range
	public void removeVehicleInRange(Vehicle v){...}		
	
	// update the locations of vehicles
	public void updateVehicleLocation(){...}	
	
	// send message to vehicle or to customer if messages queue is not empty
	public void sendMessage(){...}			
	
	// receive message from vehicle or from customer, push it to message queue
	public void receiveMessage(Message message){...}		
	
	// find a vehicle in the range of the base and assign a customer to it
	public boolean connectCustomerToVehicle(){...}
	
	// use a vehicle from another area
	public void connectCustomerToVehicle(Vehicle v){...}

}

public class Network{

	private ArrayList<LocationBase> network;
	
	private int numberOfBases;
	
	public Network(){}
	
	...	

}

Hi There,

In total awe…. So much respect and gratitude to you folks for Amazon Interview Question for Principal Software Engineers without missing any points on the Distributed vs Parallel computing. Kudos!

I know that you may answer as already in such case that you noticed that I open case 4914182641 in support center and that I need to wait their answer. But when I opened it, I start to search such problems with overdue payments on forums. And I found that everytime people said that they not get answer from support (from 48 hours to 1 week). I'm very affraid that in my case support cannot react same as I read it from forums. And that my account can be closed. It's really little sum (approx. 8 EUR for february) and very big time of use (many years). I create domain's there and buckets. And it's very affraid to lost account such way. Can you, please, help me?

Amazon S3 provides access to reliable and inexpensive data storage infrastructure. It is designed to make web-scale computing easier by enabling you to store and retrieve any amount of data, at any time, from within Amazon EC2 or anywhere on the web.

But nice Article Mate! Great Information! Keep up the good work!

Kind Regards,
Kevin