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 is difference between list set and map?

890

Why is hashset not ordered?

974

What is difference between hashmap and hashtable?

954

Why do we use hashset?

924

What is queue example?

907

What is the advantage of circular linked list?

813

What is the limit of arraylist?

925

What is dynamic array in excel?

882

Which is faster arraylist or linked list?

907

What is the difference between set and unordered_set?

854

Will hashmap allow null keys?

906

Why null is not allowed in treemap?

972

Why do we need arrays if all the operations that are performed on arrays can be performed on arraylist?

856

Why is arraylist used?

950

What is difference between list and array list?

835

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Un-Answered Questions { Data Structures }

Name the areas in which you can apply data structures extensively?

953

Define heap order property?

1017

Can you please explain the difference between string and an array?

1117

What does quick sort do?

868

Can we add duplicate keys in a hashmap? What will happen if we attempt to add duplicate values?

826

Is Arraylist faster than Array? Why?

1010

What is the use of prototype?

898

How is bubble sort done?

836

What is the best complexity of bubble sort?

910

What is scalar data type?

990

Difference between hashset and treeset?

1046

What is immutablelist?

907

Can treeset contain duplicates?

926

What is stable sorting?

867

Devise a program to sort an array using bubble sort.

1032

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