// procedural programming
// imperative programming
// object-oriented programming
//    console.next()
//    output.println()
//    rand.nextInt()

public class PointClient {
   public static void main(String[] args) {
//       int x1 = 5;
//       int y1 = 9;
//       int x2 = -3;
//       int y2 = 3;
      
//       // procedural version
//       System.out.println("Point 1 distance from origin: " + distanceFromOrigin(x1, y1));
//       System.out.println("Point 2 distance from origin: " + distanceFromOrigin(x2, y2));
//       System.out.println("Distance between points: " + distanceBetween(x1, y1, x2, y2));
//       translate(x1, y1, 2, 2);
//       System.out.println("Point 1 distance from origin after translate: " + distanceFromOrigin(x1, y1));
//       System.out.println();
       
      Point p1 = new Point();
      p1.x = 5;
      p1.y = 9;
      Point p2 = new Point();
      p2.x = -3;
      p2.y = 3;
      
//       // partially encapsulated version
//       System.out.println("Point 1 distance from origin: " + distanceFromOrigin(p1.x, p1.y));
//       System.out.println("Point 2 distance from origin: " + distanceFromOrigin(p2.x, p2.y));
//       System.out.println("Distance between points: " + distanceBetween(p1.x, p1.y, p2.x, p2.y));
//       System.out.println();

//       // more encapsulated version
//       System.out.println("Point 1 distance from origin: " + distanceFromOrigin(p1));
//       System.out.println("Point 2 distance from origin: " + distanceFromOrigin(p2));
//       System.out.println("Distance between points: " + distanceBetween(p1, p2));
//       translate(p1, 2, 2);
//       System.out.println("Point 1 distance from origin after translate: " + distanceFromOrigin(p1));
//       System.out.println();
      
      // object-oriented version
      System.out.println("Point 1 distance from origin: " + p1.distanceFromOrigin());
      System.out.println("Point 2 distance from origin: " + p2.distanceFromOrigin());
      System.out.println("Distance between points: " + p1.distanceFrom(p2));
      p1.translate(2, 2);
      System.out.println("Point 1 distance from origin after translate: " + p1.distanceFromOrigin());
      System.out.println();      
      
   }
    
//    public static double distanceFromOrigin(int x, int y) {
//       return Math.sqrt(x * x + y * y);
//    }
//    
//    public static double distanceBetween(int x1, int y1, int x2, int y2) {
//       return Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
//    }
//    
//    public static void translate(int x, int y, int dx, int dy) {
//    }
//    
//    public static double distanceFromOrigin(Point p) {
//       return Math.sqrt(p.x * p.x + p.y * p.y);
//    }
//    
//    public static double distanceBetween(Point p1, Point p2) {
//       return Math.sqrt((p2.x - p1.x) * (p2.x - p1.x) + (p2.y - p1.y) * (p2.y - p1.y));
//    }
//    
//    public static void translate(Point p, int dx, int dy) {
//       p.x += dx;
//       p.y += dy;
//    }
}