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

Data Structures Interview Questions

Questions Answers Views Company eMail

Differentiate between hashmap and treemap.

971

Differentiate between the singly linked list and doubly linked list.

985

Differentiate between set and map.

1171

Differentiate between collection and collections.

1086

Differentiate between iterator and listiterator.

992

Differentiate between iterable and iterator.

1099

Differentiate between failfast and failsafe.

1174

Differentiate between queue and stack.

1208

Differentiate between list and set.

1070

Differentiate between an array and an arraylist.

1069

Differentiate between hashmap and hashtable.

1113

Differentiate between list and map.

1016

Differentiate between comparable and comparator.

1039

Differentiate between arraylist and vector.

1361

Differentiate between priorityqueue and treeset.

1236

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Un-Answered Questions { Data Structures }

How do I push an element into a stack?

868

Why is arraylist not thread safe?

918

What is the difference between adt and data structure?

995

How to find the duplicate in an array?

955

What are the types of queues?

1091

What happens if an array goes out-of-bounds?

1085

Which is the parent class of abstractsequentiallist class?

941

What is sorting with example?

906

What are vectors used for in real life?

878

Explain the uses of b+ tree.

927

Can treeset have duplicates?

904

Is treemap synchronized?

915

What is the default capacity of hashmap?

840

What are the advantages and disadvantages of copyonwritearraylist?

1128

What is the use of tree data structure?

875

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