Which of the following statement(s) is(are) false about Java LinkedList? a. Java LinkedList class cannot contain duplicate elements. b. Java LinkedList class maintains insertion order. c. Java LinkedList class is non synchronized. d. Java LinkedList class cannot be used as a list, stack or queue.

Which of the following statements is true regarding ArrayList in Java? a. ArrayList is a synchronized data structure, making it thread-safe. b. ArrayList allows duplicate elements and maintains insertion order. c. ArrayList has a fixed size that must be specified at creation and cannot be changed. d. ArrayList can only store primitive data types like int, double, and char.

Which of the following statements about arrays and linked lists in Java is/are Incorrect ? a. Arrays are always faster than linked lists. b. Linked lists are always faster than arrays. c. Arrays are better for random access, while linked lists are better for sequential access. d. Arrays and linked lists have the same performance for both random and sequential access.

Which of the following Java Collections class is synchronized and thread-safe?a)java.util.LinkedListb)java.util.HashSetc)java.util.Vectord)java.util.ArrayList

Which of the following statement is false?A Arrays are dense lists and static data structureB data elements in linked list need not be stored in adjacent space in memoryC pointers store the next data element of a list.D linked lists are collection of the nodes that contain information part and next pointer

12. Which of the following points is/are not true about Linked List data structure when it is compared with an array?a) Random access is not allowed in a typical implementation of Linked Listsb) Access of elements in linked list takes less time than compared to arraysc) Arrays have better cache locality that can make them better in terms of performanced) It is easy to insert and delete elements in Linked List