Flight

Object
- Flight

```
public class Flight
extends Object
```
Represents a flight between two airports.

Field Summary

Fields
Modifier and Type	Field and Description
`private double`	`cost` The cost of the flight
`private LocalDate`	`date` The date of the flight.
`private Airport`	`destination` The destination Airport
`private double`	`distance` The distance of the flight which must be calculated in the constructor using the DistanceCalculator class.
`private String`	`number` Represents the flight number as a string composed of 4 digits.
`private Airport`	`origin` The origin Airport.

Constructor Summary

Constructors
Constructor and Description
`Flight(String number, LocalDate date, Airport origin, Airport destination, double cost)` Creates a Flight object if the flight number is valid `number`, otherwise throws an InvalidArgumentException.
`Flight(String number, String date, Airport origin, Airport destination, double cost)` Creates a Flight object if the flight number is valid `number`, otherwise throws an InvalidArgumentException.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`flightString()` Returns a string in the format: flightNumber-date-originCode-destinationCode
`double`	`getCost()`
`LocalDate`	`getDate()`
`Airport`	`getDestination()`
`double`	`getDistance()`
`private double`	`getDistanceBetween()` Optional, a helper method I used in my solution.
`String`	`getNumber()`
`Airport`	`getOrigin()`
`private boolean`	`isFlightNumValid(String number)` Optional, a helper method I used in my solution.
`(package private) String`	`location(Airport a)` Optional, this is a helper method I wrote.
`String`	`toString()` Returns a string exactly in the format show below (by example).

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - cost
```
private double cost
```
    The cost of the flight
  - date
```
private LocalDate date
```
    The date of the flight. For simplicity, we will not consider the time associated with the departure from the origin and landing at the destination, a brief example of how to use a LocalDate is found in FlightTest.java, in the testCompareDates() method.
  - destination
```
private Airport destination
```
    The destination Airport
  - distance
```
private double distance
```
    The distance of the flight which must be calculated in the constructor using the DistanceCalculator class.
  - number
```
private String number
```
    Represents the flight number as a string composed of 4 digits.
  - origin
```
private Airport origin
```
    The origin Airport.
- Constructor Detail
  - Flight
```
public Flight(String number,
              LocalDate date,
              Airport origin,
              Airport destination,
              double cost)
```
    Creates a Flight object if the flight number is valid number, otherwise throws an InvalidArgumentException. Note that the distance instance variable must be calculated here.
    
    Parameters:
    
    number -
    
    date -
    
    origin -
    
    destination -
    
    cost -
  - Flight
```
public Flight(String number,
              String date,
              Airport origin,
              Airport destination,
              double cost)
```
    Creates a Flight object if the flight number is valid number, otherwise throws an InvalidArgumentException. This overload accepts a String date as opposed to a LocalDate.
    
    Parameters:
    
    number -
    
    date -
    
    origin -
    
    destination -
    
    cost -
- Method Detail
  - flightString
```
public String flightString()
```
    Returns a string in the format: flightNumber-date-originCode-destinationCode
    
    Returns:
  - getCost
```
public double getCost()
```
  - getDate
```
public LocalDate getDate()
```
  - getDestination
```
public Airport getDestination()
```
  - getDistance
```
public double getDistance()
```
  - getDistanceBetween
```
private double getDistanceBetween()
```
    Optional, a helper method I used in my solution.
    
    Returns:
  - getNumber
```
public String getNumber()
```
  - getOrigin
```
public Airport getOrigin()
```
  - isFlightNumValid
```
private boolean isFlightNumValid(String number)
```
    Optional, a helper method I used in my solution.
    
    Returns:
  - location
```
String location(Airport a)
```
    Optional, this is a helper method I wrote. You are not required to write such a method.
    
    Returns:
  - toString
```
public String toString()
```
    Returns a string exactly in the format show below (by example). Note that the distance should have no decimals and the cost should be formated as currency (2 decimals, $ sign, "," separator.
```
   Flight: 1234, Date: 2020-06-18
     From: VLD-Valdosta, GA
       To: CSG-Columbus, GA
 Distance: 154 miles, Cost: $144.50

 
```
    Overrides:
    
    toString in class Object
    
    Returns:

Class Flight

Field Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Field Detail

cost

date

destination

distance

number

origin

Constructor Detail

Flight

Flight

Method Detail

flightString

getCost

getDate

getDestination

getDistance

getDistanceBetween

getNumber

getOrigin

isFlightNumValid

location

toString