APCS_CH8_Point.java

//Point.java        MrG     2013.0208
public class Point implements Comparable
{
    private double x;
    private double y;

    public Point(double x, double y)
    {
        this.x=x;
        this.y=y;
    }

    private double distance()
    {
        return Math.sqrt(x*x+y*y);
    }

    public int compareTo(Object other)
    {
        Point temp = (Point)other;
        return (int)(this.distance()-temp.distance());
    }

    public boolean equals(Object other)
    {
        Point temp = (Point)other;
        return this.compareTo(temp)==0;
    }

    public String toString()
    {
        return "(" + x + ", " + y + ")";
    }

    public double getX()
    {
        return x;
    }

    public double getY()
    {
        return y;
    }
}