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 different types of linked list?

893

Is it possible to increase size of array?

999

Does arraylist have index?

1028

Should I use hashmap or hashtable?

943

Does linked list allow duplicates?

940

Is vector synchronized?

964

Are duplicates allowed in hashmap?

936

How do you initialize an arraylist?

1031

Is arraylist heterogeneous?

939

How do you sort elements in an arraylist?

920

Is char array null terminated?

928

Is array a dynamic data structure?

1 1416

How many types of linked lists are there?

979

How do you find the length of an arraylist?

970

Is duplicate allowed in hashmap?

1123

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Un-Answered Questions { Data Structures }

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

1034

What is sorting an array?

951

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

938

Does arraylist contain duplicates?

935

What is difference between list and array?

963

What is data structure what is need of it?

933

Traverse the given tree using Inorder, Preorder and Postorder traversals. Inorder : D H B E A F C I G J Preorder: A B D H E C F G I J Postorder: H D E B F I J G C A

1113

Compare Queue and Topic ?

1160

What is the Role of push() and pop() method?

1063

What is the best time complexity of bubble sort?

966

List all data structures you would use for a memory management module.

1017

Is an arraylist an object?

1031

What does arrays tostring do?

936

Is array a data type?

906

how to add an item to the beginning of the list?

1017

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