csci1913/Java/lab6/lab6_strap012.java


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package lab6;

class Rectangle extends Polygon {
    public Rectangle(int l, int w) {
        super(4, l, w, l, w);
    }
    public int area() {
        return this.side(0)*this.side(1);
    }
}

class Square extends Polygon {
    public Square(int l) {
        super(4, l, l, l, l);
    }
    public int area() {
        return this.side(0)*this.side(1);
    }
}