题目内容

The reverse method is defined in this section. What is list1 after executing the following statements? int[] list1 = {1, 2, 3, 4, 5, 6}; int[] list2 = reverse(list1);

A. list1 is 1 2 3 4 5 6
B. list1 is 0 0 0 0 0 0
C. list1 is 6 6 6 6 6 6
D. list1 is 6 5 4 3 2 1

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In the following code, what is the printout for list1? public class Test {public static void main(String[] args) {int[] list1 = {1, 2, 3};int[] list2 = {1, 2, 3};list2 = list1;list1[0] = 0; list1[1] = 1; list2[2] = 2; for (int i = 0; i < list1.length; i++)System.out.print(list1[i] + " ");} }

A. 0 1 3
B. 1 1 1
C. 0 1 2
D. 1 2 3

What is the representation of the third element in an array called a?

A. a[3]
B. a[2]
C. a(3)
D. a(2)

Use the selectionSort method presented in this section to answer this question. What is list1 after executing the following statements? double[] list1 = {3.1, 3.1, 2.5, 6.4}; selectionSort(list1);

A. list1 is 3.1, 3.1, 2.5, 6.4
B. list1 is 3.1, 2.5, 3.1, 6.4
C. list1 is 2.5 3.1, 3.1, 6.4
D. list1 is 6.4, 3.1, 3.1, 2.5

If you declare an array double[] list = {3.4, 2.0, 3.5, 5.5}, list[1] is ________.

A. 3.5
B. 2.0
C. undefined
D. 3.4