Data Structures Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Structures Interview Questions

Questions Answers Views Company eMail

What does the dummy header in the linked list contain?

921

How many pointers are necessary to implement a simple linked list?

883

How can you insert a node at the end of linked list?

645

Differentiate between singly and doubly linked lists?

696

What is the difference between the hash table and hash map?

690

How does hashset work internally in java?

697

For addition and deletion. Which one is most preferred: array list or linked list?

678

Is it possible to make an array volatile in java?

668

For searches. Which one is most preferred: array list or linked list?

727

What is a spanning tree?does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes?

666

Which is the simplest file structure?

741

Differentiate between queue and deque.

664

Differentiate between hashset and hashmap.

665

Differentiate between iterator and enumeration.

677

Differentiate between hashset and treeset.

716

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Un-Answered Questions { Data Structures }

Can constructor be static?

635

How many parts are there in a declaration statement using data structures?

655

Can we add heterogeneous elements into treemap?

710

What is a list in data structure?

630

Is treeset synchronized?

623

What do you mean by shortest path?

728

What are the disadvantages of linked list over array?

642

How can you correct these errors?

675

What is the purpose of sorting?

663

How many types of lists are there?

678

Write the procedure to convert general tree to binary tree?

752

Suppose in an integer array, there is 1 to 100 number, out of one is duplicate, how to find?

727

How to copy an array into another array?

664

State the properties of b tree.

734

What is heap tree explain with example?

668

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