DistanceFormula

import java.util.Scanner;

public class DistanceFormula {

    public static void main(String[] args) {
        String orderedP1, orderedP2;
        int x1, y1, x2, y2, tBase, tHeight;
        double tArea, distance;

        Scanner scan = new Scanner(System.in);

       System.out.print("Enter an ordered pair: x,y: ");
       orderedP1 = scan.nextLine();
       x1 = Integer.parseInt(orderedP1.substring(0,1));
       y1 = Integer.parseInt(orderedP1.substring(2));

        System.out.print("Enter an ordered pair: x,y: ");
        orderedP2 = scan.nextLine();
        x2 = Integer.parseInt(orderedP2.substring(0,1));
        y2 = Integer.parseInt(orderedP2.substring(2));

        distance = Math.sqrt((Math.pow(Math.abs(y2-y1),2)) + (Math.pow(Math.abs(x2-x1),2)));
        System.out.println("The distance between the ordered pairs " + orderedP1 + " and " + orderedP2 + " is: " + distance);
        // Using printf()
        System.out.printf("The distance between (%s) and (%s) is %.2f\n", orderedP1, orderedP2,
                distance);

        // Form a triangle ot of 2 ordered pairs
        tBase = Math.abs(x1-x2);
        tHeight = Math.abs(y1-y2);
        tArea = (0.5) * (tBase * tHeight);

        System.out.printf("The triangle formed with (%s) and (%s) has an area of %,.2f\n",
                orderedP1, orderedP2, tArea);

    }
}