// Third version of Point class for storing an ordered pair (x, y).  This
// version is encapsulatd and has fields, two constructors, additional methods
// to set the location and compute the distance between two points, and a
// toString method.  It also uses the "this" notation to simplify parameter
// names and to have one constructor call the other.

public class Point {
    private int x;
    private int y;
        
    // constructs a point that corresponds to the origin (0, 0)
    public Point() {
        this(0, 0);
    }
        
    // constructs a point with given x and y coordinates
    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    // translates this points's coordinates by the given delta-x and delta-y
    public void translate(int dx, int dy) {
        x += dx;
        y += dy;
    }

    // returns the distance from this point to the origin (0, 0)
    public double distanceFromOrigin() {
        return Math.sqrt(x * x + y * y);
    }
        
    // returns this point's x coordinate
    public int getX() {
        return x;
    }
        
    // returns this point's y coordinate
    public int getY() {
        return y;
    }
        
    // sets this point's location to the given x and y coordinates
    public void setLocation(int x, int y) {
        this.x = x;
        this.y = y;
    }

    // returns the distance from this point to the given point
    public double distance(Point other) {
        int dx = other.x - x;
        int dy = other.y - y;
        return Math.sqrt(dx * dx + dy * dy);
    }

    // returns a text representation of the point: (x, y)
    public String toString() {
        return "(" + x + ", " + y + ")";
    }
}