Data Structures Interview Questions
Questions Answers Views Company eMail

Is a list an array?

608

Does treemap allow null values?

621

Can array store heterogeneous data?

620

Is arraylist reference type?

636

Does arraylist contain duplicates?

642

Is hashtable fail fast?

616

Is array part of collection framework?

652

Does list allow null values?

708

How arraylist increase its size?

656

Can arraylist contain null?

638

What is map entry?

661

Is null allowed in list?

604

Is array faster than arraylist?

648

Can we define the size of arraylist?

658

Does treeset allow null?

643


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Un-Answered Questions { Data Structures }

Explain heapsort. What is its complexity?

757


Can a binary tree be empty?

690


“int a[] = new int[3]{1, 2, 3}” – This a legal way of defining the arrays?

957


What are different dynamic memory allocation technique in c.

694


What are the different binary tree traversal techniques?

766


What do you understand by doubly linked list?

678


Why hashtable is faster than arraylist?

710


Can list contain null values?

646


What are linked lists good for?

641


What is thread and types of thread?

699


Define an algorithm. What are the properties of an algorithm? What are the types of algorithms?

707


Is array a linked list?

646


Is list a data structure?

660


How to find the missing element in integer array of 1 to 7?

704


Explain binary searching, Fibonacci search.

732