Point.java

public class Point {
    /**
     * X coordinate.
     */
    private int x;

    /**
     * Y coordinate.
     */
    private int y;

    /**
     * Default constructor.
     */
    public Point() {
        this(0, 0);
    }

    /**
     * Constructor.
     * @param x Coordinate for x-axis.
     * @param y Coordinate for y-axis.
     */
    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    /**
     * Copy constructor.
     * @param p Object to copy.
     */
    public Point(Point p) {
        this(p.x, p.y);
    }

    /**
     * @return the distance of p from this.
     */
    public double distanceFrom(Point p) {
        int dx = this.x - p.x;
        int dy = this.y - p.y;
        return Math.sqrt(dx*dx + dy*dy);
    }

    /**
     * @param point to compare to.
     * @return true if the ginen point equals this point.
     */
    public boolean equals(Point p) {
        return this.x == p.x && this.y == p.y;
    }

    public String toString() {

        return String.format("(%d, %d)", getX(), getY());
    }

    public int getX() {
        return x;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getY() {
        return y;
    }

    public void setY(int y) {
        this.y = y;
    }


}