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

Data Structures Interview Questions

Questions Answers Views Company eMail

Which interface provides the capability to store objects using a key-value pair?

1106

Can we use ordered set for performing binary search?

915

What is rule regarding overriding equals and hascode method?

908

Can you provide some implementation of a dictionary having large number of words?

1103

What is the difference between arraylist and linkedlist?

985

Which interface treemap implements?

974

If we try to add duplicate key to the hashmap, what will happen?

869

Which interfaces are implemented by linkedhashset?

1034

What is copyonwritearraylist?

1001

Why is reflection slower?

897

Which is the parent class of hashmap class?

1145

Which interfaces are implemented by enumset?

884

What is the difference between collection and collections?

1023

What is the difference between collections class vs collections interface?

959

What things you would care about to improve the performance of application if its identified that its db communication that needs to be improved?

931

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Un-Answered Questions { Data Structures }

What is adt in data structure?

994

How does threaded binary tree represented in data structure?

1010

What is difference between array and string?

992

What is the difference between null and void?

947

What is heap tree explain with example?

969

Which sorting algorithm is considered the fastest?

1011

Which language is best for data structures and algorithms?

931

How many null values are allowed in hashmap?

927

State the rules to be followed during infix to prefix conversions?

1047

Does treemap allow null values?

858

What is ordered map?

849

Define parent node?

970

Which is best array or linked list?

904

Why would we use dynamically allocated arrays vs vectors?

877

Does treeset allow duplicates?

893

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