Rewrite recursively public Item get(int index) {if (index < 0 || index >= size) {throw newIndexOutOfBoundsException();}int i = 0;Node current = sentinel.next;while (i != index) {current current.next;i++;=}return current.item;}

Check if the given index is within the bounds of the list (between 0 and size-1). If the index is…

Answered: public Item get(int index) { if (index…

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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Question

Rewrite recursively

public Item get(int index) {
if (index < 0 || index >= size) {
throw new
IndexOutOfBoundsException();
}
int i = 0;
Node current = sentinel.next;
while (i != index) {
current current.next;
i++;
=
}
return current.item;
}

Expert Solution

Algorithm

Check if the given index is within the bounds of the list (between 0 and size-1).
If the index is out of bounds, throw an IndexOutOfBoundsException.
Otherwise, call the private method get(int index, Node current) with the first node of the list (sentinel.next) as the starting point for the search.
In the private method get, if the index is 0, return the item of the current node.
Otherwise, recursively call get with the next node in the list and index decremented by 1.

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