Question 72

Given:

11.    // insert code here

12.    private N min, max;

13.    public N getMin() { return min; }

14.    public N getMax() { return max; }

15.    public void add(N added) {

16.       if (min == null || added.doubleValue() < min.doubleValue())

17.          min = added;

18.       if (max == null ||added.doubleValue() > max.doubleValue())

19.          max = added;

20.    }

21. }

Which two, inserted at line 11, will allow the code to compile? (Choose two.)

A. public class MinMax<?> {

B. public class MinMax<? extends Number> {

C. public class MinMax<N extends Object> {

D. public class MinMax<N extends Number> {

E. public class MinMax<? extends Object> {

F. public class MinMax<N extends Integer> {

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