Consider the following code snippet: Public static void print(E[] a) { For (int i = 0; i

Question

Consider the following code snippet:
Public static <E> void print(E[] a)
{
For (int i = 0; i < a.length; i++)
{
System.out.println(a[i] + " ");
}
}
Int[] a = {3,6,5,7,8,9,2,3};
Print(makeArray(a));
Assume that the method call to print(makeArray(a)) works correctly by printing the int array a. Which of the following headers for the makeArray method will make this possible?
I public static Integer[] makeArray(int[] a) 
II public static E[] makeArray(int[] a) 
III public static Integer[] makeArray(E[] a)
A) I
B) I and II
C) II and III
D) I and III

Quizplus · Accepted Answer

The print method is expecting an array of type E, which is a generic type. In this case, the array being passed in is of type int[].

Therefore, in order for makeArray to work correctly, it needs to return an array of type E, which should be Integer in this case as int cannot be cast to E.

Choice I is correct because it returns an array of Integer[], which matches the type expected by the print method.

Choice II is incorrect because it returns an array of type E[], which is not specific enough to match the expected type of the print method.

Choice III is incorrect because it takes an array of type E[], which is not the correct type for the input array.

Consider the Following Code Snippet