Data Structures Interview Questions
Questions Answers Views Company eMail

Differentiate between hashmap and treemap.

656

Differentiate between the singly linked list and doubly linked list.

765

Differentiate between set and map.

761

Differentiate between collection and collections.

774

Differentiate between iterator and listiterator.

782

Differentiate between iterable and iterator.

827

Differentiate between failfast and failsafe.

890

Differentiate between queue and stack.

904

Differentiate between list and set.

805

Differentiate between an array and an arraylist.

742

Differentiate between hashmap and hashtable.

785

Differentiate between list and map.

755

Differentiate between comparable and comparator.

790

Differentiate between arraylist and vector.

1025

Differentiate between priorityqueue and treeset.

937


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Un-Answered Questions { Data Structures }

What data structure does a binary tree degenerate?

593


What is basic data structure?

652


How do you do a heap sort?

640


What is the difference between arraylist and hashmap?

593


Is arraylist a class?

626






Name some applications which use linked lists.

717


How can we remove loops in a linked list? What are the functions of fast and slow pointers?

849


Which one is the simplest sorting in data structure?

775


Why is arraylist faster than linkedlist?

697


What is heap with example?

645


Is hashmap synchronized?

691


How do you assign an address to an element of a pointer array ?

684


Which collection allows null values?

622


What is binary search in programming?

643


Can we change the size of an array at run time?

709