31. Consider the following code segment and method salsa. ArrayList list = new ArrayList(); for (int k = 1; k <= 10; k++) list.add(k * 10); salsa(list,55,4); public static void salsa(ArrayList list, int a, int b) { list.add(b, a); } 31. What is the behavior of method salsa? Method salsa adds integer b at the end of the list. Method salsa adds integer a at the end of the list. Method salsa adds integer a at index b in the list. Method salsa adds integer b at index a in the list. Method salsa adds integer b after the element at index a in the list.
31. Consider the following code segment and method salsa. ArrayList list = new ArrayList(); for (int k = 1; k <= 10; k++) list.add(k * 10); salsa(list,55,4); public static void salsa(ArrayList list, int a, int b) { list.add(b, a); } 31. What is the behavior of method salsa? Method salsa adds integer b at the end of the list. Method salsa adds integer a at the end of the list. Method salsa adds integer a at index b in the list. Method salsa adds integer b at index a in the list. Method salsa adds integer b after the element at index a in the list.
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
Section: Chapter Questions
Problem 1PE
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questions are in the pics. thanks!

Transcribed Image Text:31. Consider the following code segment and method salsa.
ArrayList<Integer> list = new ArrayList<Integer>>();
for (int k = 1; k <= 10; k++)
list.add(k* 10);
salsa(list,55,4);
public static void salsa (ArrayList<Integer> list, int a, int b)
{
list.add(b, a);
}
31. What is the behavior of method salsa?
Method salsa adds integer b at the end of the list.
Method salsa adds integer a at the end of the list.
Method salsa adds integer a at index b in the list.
Method salsa adds integer b at index a in the list.
Method salsa adds integer b after the element at index a in the list.

Transcribed Image Text:29. Consider the following code segment.
ArrayList<Integer> list = new ArrayList<Integer>();
for (int k =1; k<= 20; k++)
{
O A
int nbr= (int) (Math.random() * 90 + 10);
list.add(nbr);
B
}
for (int item: list)
item = 99;
(A) 30 84 50 21 17 38 39 60 29 91 51 90 78 32 72 29 21 37 48 52
(B) 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99
(C) 30 84 50 21 17 38 39 60 29 91 51 90 78 32 72 29 21 37 48 52
99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99
O D
for (int item : list)
(D) 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99
30 84 50 21 17 38 39 60 29 91 51 90 78 32 72 29 21 37 48 52
E
System.out.print(item+ " ");
(E) IndexOutOfBoundsException
System.out.println();
29. What is printed when the program is executed?
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