Programming

public class Algorithm {
    public static <T extends Comparable<T>> T max(Collection<? extends T> coll) {
        T max = coll.iterator().next();

        for (T elm : coll) {
            if (max.compareTo(elm) < 0)
                max = elm;
        }

        return max;
}

public class Fruit implements Comparable<Fruit> {
    private String name;
    private int size;

    public Fruit(String name, int size) {
        this.name = name;
        this.size = size;
    }
    
    public int compareTo(Fruit that) {
        if (size < that.size)
            return -1;
        else if (size == that.size)
            return 0;
        else
            return 1;
    }
}

public class Apple extends Fruit {
    public Apple(int size) {
    super("Apple", size);
    }
}

public class Main
{
    public static void main(String[] args) {        
        Apple a1 = new Apple(10);
        Apple a2 = new Apple(34);
        
        List<Apple> apples = Arrays.<Apple>asList(a1, a2);
        System.out.println(Collections.max(apples).name);
        }
}

public static <T extends Comparable<? super T>> T max(Collection<? extends T> coll)