What will contain the List listOfFruits ?
public class GenericsTest {
static class Fruit {}
static class Apple extends Fruit {}
public static void main(String[] args) {
Apple apple = new Apple();
List<? extends Fruit> listOfFruits = new ArrayList<>();
listOfFruits.add(apple);
}
}
I don't know why when i add apple to the list, it doesn't work , However it fits so well. ( Apple extends Fruit> .
Even if i put another Fruit.
Fruit aFruit = new Fruit();
listOfFruits.add(aFruit);
Amazing even instance of Fruit doesn't work.
The only way is to remplace 'extends' by 'super'. I really don't understand.
