import geometry.*;

import java.util.*;

class FigureDemo {
    /*
    Figure largest(LinkedList<Figure> fs) {
        
    }

    Figure largest(ArrayList<Figure> fs) {
        
    }
*/

    static Figure largest(List<Figure> fs) {
        if (fs.size() > 0) {
            Figure max = fs.get(0);
            for (Figure f : fs) {
                if (max.compareTo(f) < 0)
                    max = f;
            }
            return max;
        } else
            return null;
    }

    static Figure largestIterator(List<Figure> fs) {
        if (fs.size() > 0) {
            Iterator<Figure> it = fs.iterator();
            Figure max = it.next();
            while (it.hasNext()) {
                Figure f = it.next();
                if (max.compareTo(f) < 0)
                    max = f;
            }
            return max;
        } else
            return null;
    }


    public static void main(String[] args) {
        Figure f1 = new Square(2, 0, 1);
        Figure f2 = new Circle(4, 5, 3);

        LinkedList<Figure> fs = new LinkedList<>();
        fs.add(f1);
        fs.add(f2);
        fs.add(new Circle(0,0,6));

        System.out.println(largest(fs).show());

        ArrayList<Figure> fsArrayL = new ArrayList<>();
        fsArrayL.add(f1);
        fsArrayL.add(f2);
        fsArrayL.add(new Circle(0,0,6));

        System.out.println(largest(fsArrayL).show());
        List<Figure> singleton = new ArrayList<>();
        singleton.add(f1);
        System.out.println(largest(singleton).show());
    }
}