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.

971

Differentiate between the singly linked list and doubly linked list.

985

Differentiate between set and map.

1169

Differentiate between collection and collections.

1084

Differentiate between iterator and listiterator.

992

Differentiate between iterable and iterator.

1099

Differentiate between failfast and failsafe.

1174

Differentiate between queue and stack.

1205

Differentiate between list and set.

1067

Differentiate between an array and an arraylist.

1068

Differentiate between hashmap and hashtable.

1113

Differentiate between list and map.

1016

Differentiate between comparable and comparator.

1039

Differentiate between arraylist and vector.

1359

Differentiate between priorityqueue and treeset.

1236

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Un-Answered Questions { Data Structures }

Can arraylist be resized?

999

Differentiate between hashset and hashmap.

987

Define non linear data structure.

969

How to do the intersection of two sorted arrays?

1032

How can you add an item to the beginning of the list?

1011

Write a code for dynamic allocation of array.

1049

What is the default size of an arraylist?

936

Why null is not allowed in treemap?

981

Write program for Quick sort ?

1102

What is a Queue? Explain its operation with example?

997

What are all the classes and interfaces that are available in the collections?

855

What is the best complexity of bubble sort?

918

What is stable sort example?

869

Why do we need linked list?

827

What is a singletonlist?

882

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