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 Advantages and disadvantages of Array?

1236

How do you find the second largest element in an array of integers?

1123

“int a[] = new int[3]{1, 2, 3}” – This a legal way of defining the arrays?

1251

How to copy an array into another array?

1013

what is the difference between Linear Array and Linked List?

1105

how to insert a new node in linked list where free node will be available?

1036

what is Singly Linked list?

1038

What does the dummy header in linked list contain?

1143

Can you declare an array without assigning the size of an array?

1176

Can we use Generics with the array?

1124

Can we declare array size as a negative number?

1054

Is there any difference between int[] a and int a[]?

1254

What is the default value of Array?

1189

Can we add or delete an element after assigning an array?

1099

If you do not initialize an array what will happen?

1073

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Un-Answered Questions { Data Structures }

Which is better hashset or treeset?

1060

What is meant by ordered and sorted in collections?

946

Why do we need linked lists?

982

How does a selection sort work?

911

What is difference between hashmap and linkedhashmap?

967

What do you mean by probing?

1040

What do you mean by balanced trees?

1072

What is bubble sort and selection sort?

1022

How does bogo sort work?

1047

Does mentioning the array name gives the base address in all the contexts?

1452

What is the need of sorting?

959

Are duplicates allowed in list?

975

How do hash tables work?

941

Which is the parent class of hashmap class?

1217

List some applications of queue data structure.

974

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