Consider the following data field and method. private ArrayList list; public void mystery (int n) { for (int k = 0; k < n; k++) Object obj = list.remove (0); list.add (obj); } } Assume that list has been initialized with the following Integer objects. [12, 9, 7, 8, 4, 3, 6, 11, 1] Which of the following represents the list as a result of a call to mystery ( 3)? A) [12, 9, 8, 4, 3, 6, 11, 1, 7] B [12, 9, 7, 8, 4, 6, 11, 1, 3] [12, 9, 7, 4, 3, 6, 11, 1, 8] D) [8, 4, з, 6, 11, 1, 12, 9, 7] E [1, 11, 6, 12, 9, 7, 8, 4, 3]

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Question 23 a
Consider the following data field and method.
private ArrayList list;
public void mystery (int n)
{
for (int k = 0; k < n; k++)
{
Object obj = list.remove (0);
list.add (obj);
}
}
Assume that list has been initialized with the following Integer objects.
[12, 9, 7, 8, 4, 3, 6, 11, 1]
Which of the following represents the list as a result of a call to mystery(3) ?
A
[12, 9, 8, 4, 3, 6, 11, 1, 7]
[12, 9, 7, 8, 4, 6, 11, 1, 3]
[12, 9, 7, 4, 3, 6, 11, 1, 8]
D
[8, 4, 3, 6, 11, 1, 12, 9, 7]
E
[1, 11, 6, 12, 9, 7, 8, 4, 3]
B.
Transcribed Image Text:Question 23 a Consider the following data field and method. private ArrayList list; public void mystery (int n) { for (int k = 0; k < n; k++) { Object obj = list.remove (0); list.add (obj); } } Assume that list has been initialized with the following Integer objects. [12, 9, 7, 8, 4, 3, 6, 11, 1] Which of the following represents the list as a result of a call to mystery(3) ? A [12, 9, 8, 4, 3, 6, 11, 1, 7] [12, 9, 7, 8, 4, 6, 11, 1, 3] [12, 9, 7, 4, 3, 6, 11, 1, 8] D [8, 4, 3, 6, 11, 1, 12, 9, 7] E [1, 11, 6, 12, 9, 7, 8, 4, 3] B.
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