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

Data Structures Interview Questions

Questions Answers Views Company eMail

How can we reverse the order in the treemap?

877

Which interfaces are implemented by abstractqueue?

917

Can we add duplicate keys in a hashmap?

902

What is comparable interface?

960

What is a property class?

1020

Which interfaces are implemented by hashmap?

974

Explain set interface?

1085

What is the Difference between sax and dom parser?

1054

Can we create a null as a key for a map collection?

923

Which interfaces are implemented by printerstatereasons?

898

What are the advantages and disadvantages of copyonwritearraylist?

1128

Difference between arraylist and linkedlist?

1024

Which interfaces are implemented by concurrentskiplistset?

862

Is it legal to initialize list like this?

969

Which is the parent class of sortedset class?

1016

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Un-Answered Questions { Data Structures }

How would you use qsort() function to sort the name stored in an array of pointers to string?

948

What is difference between concurrenthashmap and hashtable?

921

List the data structures which are used in hierarchical data model.

947

Which sorting algorithm is best for large data?

878

Explain Queue

1062

State the merit of linked representation of binary trees?

938

How to copy an array into another array?

963

Draw a binary Tree for the expression : A * B - (C + D) * (P / Q)

1417

What are the advantages of binary search over linear search?

1040

What is the difference between array and stack?

1063

Parenthesis is never required in postfix or prefix expressions, why?

901

What does arrays tostring do?

872

What is data structure and data type?

958

How does max heap work?

904

What is difference between an Array and ArrayList?

1010

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