main
Class CityFinder

java.lang.Object
  main.CityFinder

public class CityFinder
extends java.lang.Object

The CityFinder class stores all of the cities that are available and finds the closest city to a given latitude/longitude pair.

Field Summary

private java.util.ArrayList<City>	cities
private static int	DIMENSION_2
private static int	DIMENSION_3

Constructor Summary

CityFinder(java.lang.String fileName)
Constructs a new CityFinder with the cities specified in the file referenced by filename that is passed in.

Method Summary

private void	parseInput(java.io.BufferedReader fin)
private City	returnClosestCity(Position position, int dimension)
City	returnClosestCity2d(Position position) Given a position, returns the closest city to it in flattened space
City	returnClosestCity3d(Position position) Given a position, returns the closest city to it in space

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cities

private java.util.ArrayList<City> cities

DIMENSION_2

private static final int DIMENSION_2

See Also:

Constant Field Values

DIMENSION_3

private static final int DIMENSION_3

See Also:

Constant Field Values

Constructor Detail

CityFinder

public CityFinder(java.lang.String fileName)
           throws java.io.IOException,
                  java.io.FileNotFoundException,
                  java.text.ParseException

Constructs a new CityFinder with the cities specified in the file referenced by filename that is passed in.

Parameters:

fileName - a String

Throws:

java.io.IOException - if there's an error opening or reading the file

java.io.FileNotFoundException - if the file is not found

java.text.ParseException - if a parse error occurs

Method Detail

parseInput

private void parseInput(java.io.BufferedReader fin)
                 throws java.io.IOException,
                        java.io.FileNotFoundException,
                        java.text.ParseException

Throws:

java.io.IOException

java.io.FileNotFoundException

java.text.ParseException

returnClosestCity3d

public City returnClosestCity3d(Position position)

Given a position, returns the closest city to it in space

Parameters:

position - a Position

Returns:

the closest city

returnClosestCity2d

public City returnClosestCity2d(Position position)

Given a position, returns the closest city to it in flattened space

Parameters:

position - a Position

Returns:

the closest city

returnClosestCity

private City returnClosestCity(Position position,
                               int dimension)