package horstmann.ch04_sort1;
/**
   A country with a name and area.
 */
public class Country implements Comparable<Country>
{
	/**
      Constructs a country.
      @param aName the name of the country
      @param anArea the area of the country
	 */
	public Country(String aName, double anArea)
	{
		name = aName;
		area = anArea;
	}

	/**
      Gets the name of the country.
      @return the name
	 */
	public String getName()
	{
		return name;
	}

	/**
      Gets the area of the country.
      @return the area
	 */
	public double getArea()
	{
		return area;
	}


	/**
      Compares two countries by area.
      @param other the other country
      @return a negative number if this country has a smaller
      area than otherCountry, 0 if the areas are the same,
      a positive number otherwise
	 */
	public int compareTo(Country other)
	{
		if (area < other.area) return -1;
		if (area > other.area) return 1;
		return 0;
	}

	private String name;
	private double area;
}