//the following is program code for the Rectangle class, which contains four constructors :
public class Rectangle {
public int width = 0;
public int height = 0;
public Point origin;

//Four constructors
public Rectangle() {
origin = new Point(0, 0);
}

public Rectangle(Point p) {
origin = p;
}

public Rectangle(int w, int h) {
this(new Point(0, 0), w, h);
}
public Rectangle(Point p, int w, int h) {
origin = p;
width = w;
height = h;
}

//A method for moving the rectangle
public void move(int x, int y) {
origin.x = x;
origin.y = y;
}
//A method for computing the area of the rectangle
public int area() {
return width * height;
}
}