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Data Structures Interview Questions
Questions Answers Views Company eMail

Why hashtable is faster than arraylist?

941

What is difference between capacity and size of arraylist?

1068

What are the advantage of linked list over array?

851

What are linked lists good for?

860

Does hashset allow duplicates?

1072

Is hashmap part of collection?

945

Is array size dynamic or fixed?

964

What does arrays tostring do?

872

Is treeset synchronized?

842

How many types of linked list are there?

857

Is arraylist a collection?

975

What does arraylist remove return?

918

Are duplicates allowed in list?

917

What are the advantages of linked list?

816

How do you replace an element in an arraylist?

1003


Post New Data Structures Questions

Un-Answered Questions { Data Structures }

Can sets contain duplicates?

831


What is the difference between collections class vs collections interface?

961


What is the difference between null and void?

947


How do you find the height of a binary tree?

890


What is the Insertion Sort Code?.

1028


Which sorting is best for large data?

929


If you have to store one lakh objects, what will be a better option- a hash map or an array list?

1206


What are the types of bulleted list?

843


Explain the uses of b+ tree.

927


Is hashmap get thread safe?

864


What is the height of an empty tree?

954


What is the time complexity of selection sort?

848


What is binary tree in discrete mathematics?

862


Describe full binary tree and complete binary tree.

882


Given an unsorted linked list, and without using a temporary buffer, write a method that will delete any duplicates from the linked list?

1017