Point.java

package lab5;
public class Point {
    double x;
    double y;

    public Point(double x, double y) {
        this.x = x;
        this.y = y;
    }

    public double distance(Point other) {
        return Math.sqrt(Math.pow(x-other.x, 2) + Math.pow(y-other.y, 2));
    }

    @Override
    public int hashCode() {
        return (int)(3*x + 5*y);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Point other = (Point) obj;
        if (x != other.x)
            return false;
        if (y != other.y)
            return false;
        return true;
    }
}