// This file defines a new class of objects named Point.
// Today's version uses the this keyword and has a toString method.

public class Point {
    // The following contents exist inside each Point object.
    
    private int x;    // Each Point has an x and y that can be
    private int y;    // seen by all of the methods below.
    
    public Point() {
        //x = 0;
        //y = 0;
        this(0, 0);    // calls the (x, y) constructor
    }
    
    // Constructs a new Point object at the given coordinates.
    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }
    
    // Returns this Point's x coordinate.
    public int getX() {
        return x;
    }
    
    // Returns this Point's y coordinate.
    public int getY() {
        return y;
    }
    
    // Shifts the point's position by the given amounts.
    public void translate(int dx, int dy) {
        setLocation(x + dx, y + dy);
        // x += dx;
        // y += dy;
    }
    
    // Computes the distance between this point and the given other point.
    public double distance(Point otherPoint) {
        int dx = x - otherPoint.x;
        int dy = y - otherPoint.y;
        return Math.sqrt(dx * dx + dy * dy);
    }
    
    // Computes the distance between this point and the origin, (0, 0).
    public double distanceFromOrigin() {
        return Math.sqrt(x * x + y * y);
        // return distance(new Point(0, 0));
    }
    
    // Sets the x and y coordinates of this point.
    public void setLocation(int x, int y) {
        this.x = x;
        this.y = y;
    }
    
    // Returns a string representation of this Point.
    public String toString() {
        return ( "(" + x + ", " + y + ")" );
    }
            
}