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.

925

Differentiate between the singly linked list and doubly linked list.

943

Differentiate between set and map.

1068

Differentiate between collection and collections.

1017

Differentiate between iterator and listiterator.

959

Differentiate between iterable and iterator.

1030

Differentiate between failfast and failsafe.

1121

Differentiate between queue and stack.

1155

Differentiate between list and set.

1014

Differentiate between an array and an arraylist.

1011

Differentiate between hashmap and hashtable.

1055

Differentiate between list and map.

976

Differentiate between comparable and comparator.

982

Differentiate between arraylist and vector.

1305

Differentiate between priorityqueue and treeset.

1187

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Un-Answered Questions { Data Structures }

Draw the B-tree of order 3 created by inserting the following data arriving in sequence – 92 24 6 7 11 8 22 4 5 16 19 20 78

1561

How do you find the number of comparisons in bubble sort?

840

Why we use linked list?

861

Why is hashset not ordered?

924

What is dynamic array how is it created?

833

Define a right-skewed binary tree?

890

What is a treeset?

848

Is hashmap an object?

849

What is numeric array?

795

Difference between calloc and malloc ?

902

What is hash value of a string?

853

Explain the term run-time stack?

949

How do you initialize an arraylist?

914

Differentiate between collection and collections.

1017

how to display Singly Linked List from First to Last?

836

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