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 are the difference between arraylist and linkedlist from the perspective of sorting?

987

What is concurrentlinkeddeque?

999

Which is the parent class of printerstatereasons class?

882

Which of the collections allows null as the key?

860

What are the Difference between tcp and udp?

985

Which interfaces are implemented by linkedlist?

930

Name few classes that implement collection interface?

913

In what order the elements of a hashset are retrieved?

961

What are the disadvantages of using collection classes over arrays?

1043

Which is the parent class of abstractqueue class?

915

Which is the parent class of enumset class?

944

Can value be null in treemap?

890

Which interfaces are implemented by abstractsequentiallist?

888

Which is the parent class of abstractsequentiallist class?

928

If we add enum constants to a sorted collection ( treemap , treeset ), what will be the order in which they will be maintained?

949

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Un-Answered Questions { Data Structures }

How does a hashtable work?

879

How does quick sort work?

922

Can hashmap have duplicate keys?

891

What is selection sort with example?

972

Define a tree?

980

Can we use any class as map key?

863

What is the difference between arrays sort and collections sort?

774

Is bubble sort faster than selection sort?

833

Explain the most efficient method to reverse a linked list?

851

Can hashset contain duplicates?

958

What is an recursive algorithm?

961

What is a stable sort?

853

Which sorting is best?

899

Is heap sort faster than quicksort?

819

Why do we use binary search?

903

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