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

Data Structures Interview Questions

Questions Answers Views Company eMail

Differentiate between hashmap and treemap.

723

Differentiate between the singly linked list and doubly linked list.

822

Differentiate between set and map.

804

Differentiate between collection and collections.

825

Differentiate between iterator and listiterator.

826

Differentiate between iterable and iterator.

881

Differentiate between failfast and failsafe.

962

Differentiate between queue and stack.

976

Differentiate between list and set.

881

Differentiate between an array and an arraylist.

813

Differentiate between hashmap and hashtable.

846

Differentiate between list and map.

793

Differentiate between comparable and comparator.

834

Differentiate between arraylist and vector.

1085

Differentiate between priorityqueue and treeset.

990

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Un-Answered Questions { Data Structures }

Can we insert null in hashset?

783

How many types of linked list exist?

751

What is dequeue operation?

694

What is the difference between arraylist and hashmap?

648

What are different types of algorithms?

693

How do you increase the capacity of an arraylist?

725

Explain what is linear search?

800

Write program for Quick sort ?

885

Is it possible to store null key and null values in a hashmap?

642

Difference between calloc and malloc in data structures?

721

When is a binary search algorithm best applied?

887

What data type is array?

702

What is hashing technique?

739

What is stable sorting?

675

Differentiate between an array and an arraylist.

813

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