package edu.wit.cs.comp1050;

import java.util.Scanner;

/**
 * PA3c Driver Class
 * @author caushie
 * 02/14/2019
 */
public class PA3c {

    /**
     * Error to display if the command-line arguments are invalid
     */
    public static final String ERR_USAGE = "Please supply 2 numbers (x y).";

    /**
     * Computes the distance using three methods
     * from the origin to a point supplied via
     * command-line arguments
     *
     * @param args command-line args: x y
     */
    public static void main(String[] args) {

        // replace the following line
        // with whatever code you see fit
        // in order to validate command-line
        // arguments and, if valid, construct
        // p via the two doubles supplied

        double x=0,y=0;
        if (args.length!=2) {
            System.out.println(ERR_USAGE);
            System.exit(0);
        }
        try {
            x=Double.parseDouble(args[0]);
            y=Double.parseDouble(args[1]);

        } catch (NumberFormatException nfe) {
            System.out.println(ERR_USAGE);
            System.exit(0);
        }
        catch(NullPointerException e) {
            System.out.println(ERR_USAGE);
            System.exit(0);
        }


        final Point2D p = new Point2D(x,y);

        //////////////////////////////////////
        // !! DO NOT CHANGE THE LINES BELOW !!
        //
        // They assume p has been
        // properly constructed and perform
        // all necessary output for the
        // program
        //////////////////////////////////////
        final Point2D o = new Point2D();
        System.out.printf("Point 1: %s%n", o);
        System.out.printf("Point 2: %s%n", p);
        System.out.printf("Static method distance: %.3f%n", Point2D.distance(o, p));
        System.out.printf("Distance from P1: %.3f%n", o.distanceTo(p));
        System.out.printf("Distance from P2: %.3f%n", p.distanceTo(o));
    }

}