In Java Which of the following is true? a.ArrayLists are constructed of nodes that include elements...

In Java

Which of the following is true?

a.ArrayLists are constructed of nodes that include elements and references to other elements
b.LinkedLists are constructed of nodes that include elements and references to other elements
c.ArrayLists are, by definition, lists of arrays
d.LinkedLists are, be definition, lists of links

Which of the following statements is correct in most cases?

a.Accessing an element in an array by index is less expensive than accessing an element by index in a LinkedList
b.Accessing an element in an array by index is less expensive than accessing an element by index in an ArrayList
c.Accessing an element in an array by index is more expensive than accessing an element by index in a LinkedList
d.Accessing an element in an array by index is more expensive than accessing an element by index in an ArrayList

Which of the following statements is correct in most cases?

a.Adding an element to the beginning of an ArrayList is less expensive than adding an element to the beginning of an array
b.Adding an element to the beginning of an ArrayList is less expensive than adding an element to the end of an ArrayList
c.Adding a node to the beginning of a LinkedList is less expensive than adding an element to the beginning of an ArrayList
d.Adding an element to the beginning of an ArrayList is less expensive than adding a node to the beginning of a LinkedList

Which of the following statements is correct in most cases?

a.Linear search of a LinkedList is less expensive than linear search of an ArrayList
b.Linear search of an ArrayList is less expensive than linear search of a LinkedList
c.Linear search of a LinkedList is less expensive than linear search of an array
d.Linear search of an ArrayList is less expensive than linear search of an array

Solutions

Expert Solution

Which of the following is true?
b.LinkedLists are constructed of nodes that include elements and references to other elements

Linked List is defined as a collection of nodes connected together by their references.

Which of the following statements is correct in most cases?

Accessing an element in an array by index is less expensive than accessing an element by index in a LinkedList

Since arrayList uses array internally, so accessing element by index is easier.

Which of the following statements is correct in most cases?

c.Adding a node to the beginning of a LinkedList is less expensive than adding an element to the beginning of an ArrayList

Adding a node at the beginning of the linked list takes O(1) time while adding at the begining of the arrayList takes O(n) time, as all elements have to be shifted to make space for the element to be entered.

Which of the following statements is correct in most cases?
b.Linear search of an ArrayList is less expensive than linear search of a LinkedList

Linear seacth is all about accessing elements by theoir index and since accessing index in arrayList is easier.

venereology answered 1 year ago

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