|
class Point {
|
|
public double x;
|
|
public double y;
|
|
public Point(double px, double py) {
|
|
this.x = px;
|
|
this.y = py;
|
|
}
|
|
public double distanceTo(Point other) {
|
|
double dx = this.x - other.x;
|
|
double dy = this.y - other.y;
|
|
return Math.sqrt(dx * dx + dy * dy);
|
|
}
|
|
}
|
|
|
|
class Circle {
|
|
public Point center;
|
|
public double radius;
|
|
public Circle(Point c, double r) {
|
|
this.center = c;
|
|
this.radius = r;
|
|
}
|
|
public double area() {
|
|
return 3.14159 * this.radius * this.radius;
|
|
}
|
|
public double circumference() {
|
|
return 2.0 * 3.14159 * this.radius;
|
|
}
|
|
}
|
|
|
|
class Rectangle {
|
|
public double width;
|
|
public double height;
|
|
public Rectangle(double w, double h) {
|
|
this.width = w;
|
|
this.height = h;
|
|
}
|
|
public double area() {
|
|
return this.width * this.height;
|
|
}
|
|
public double perimeter() {
|
|
return 2.0 * (this.width + this.height);
|
|
}
|
|
public double diagonal() {
|
|
return Math.sqrt(this.width * this.width + this.height * this.height);
|
|
}
|
|
}
|
|
|
|
Point p1 = new Point(0.0, 0.0);
|
|
Point p2 = new Point(3.0, 4.0);
|
|
p1.distanceTo(p2)
|
|
|
|
Circle c = new Circle(new Point(0.0, 0.0), 5.0);
|
|
c.area()
|
|
c.circumference()
|
|
|
|
Rectangle r = new Rectangle(3.0, 4.0);
|
|
r.area()
|
|
r.perimeter()
|
|
r.diagonal()
|
|
|
|
%classes
|
|
%whos
|
|
%quit
|