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Data Structures Interview Questions
Questions Answers Views Company eMail

Does arraylist allow null values?

941

Can treemap have null values?

897

How do you sort an array in descending order?

886

What do you mean by selection sort?

880

Is bubble sort faster than selection sort?

844

How do you use the sort function?

844

What are the advantages of stack?

853

What do u mean by array?

913

How null key is handled in hashmap?

890

How does quick sort work?

928

What are the types of sorting?

889

How does a treemap sort?

831

Is hashmap get thread safe?

864

Does treemap preserve order?

847

How do you sort in ascending order in arraylist?

870


Post New Data Structures Questions

Un-Answered Questions { Data Structures }

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

884


What is difference between hashmap and treemap?

956


What are three common types of traversals?

1009


What is the purpose of sorting algorithms?

986


What is a matrix? Explain its uses with an example

1156


Do sets allow duplicates?

968


Difference between abstract data type, data type and data structure?

1046


Why heap sort is not used?

879


Differentiate between list and set.

1068


Are dictionaries mutable?

858


What is a pseudocode example?

972


Why is map not a collection?

856


If you do not initialize an array what will happen?

1018


What are the disadvantages of linked list over array?

909


Write any two principles of gradation of structures.

983