Generics ques...pl help explain

[Pav Arora]

When I went thru KB, I thought I have understood Generics. I am not getting the following question -

 
class Food{}
class Fruit extends Food {}
class Apple extends Fruit {}
// insert code here
  public static void main(String a[]) {
    Pie<Fruit> p = new Pie<fruit>();
  }
}
 

Which inserted at // will compile

a) class Pie<T extends Food> {
b) class Pie<T extends Fruit> {
c) class Pie<T extends Apple> {
d) class Pie<T extends Pie> {
e) class Pie<T super Apple> {
f) class Pie<T>{

[sree visu]

i am not sure about the answer but i hope "B" is the correct answer .this is because Pie<Fruit> p=new pie<fruit>(); ..so here anything that the class can take must be that extends fruit.

[Keith Lynn]

a, b, and f should work

Apple is a subclass of Fruit so c won't work.

Pie has no relation to Fruit so d won't work.

super isn't used in a generic class definition so e won't work.

[Pav Arora]

Thanks guys.