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Data Structures Interview Questions
Questions Answers Views Company eMail

Is arraylist better than array?

 675

Does hashmap allow duplicate keys?

 744

Can you change size of array once created?

 646

Can an arraylist be null?

 663

Can hashset contain duplicates?

 680

What is difference between treeset hashset linkedhashset?

 627

What is an array vs list?

 664

What is difference between while and do while?

 674

Why use a tuple instead of a list?

 654

Is list an array?

 619

What is the difference between for and foreach loop?

 665

Is list same as array?

 622

What is a string or array type?

 627

What is difference between for loop and foreach?

 667

What is the difference between list and arraylist?

 672

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Un-Answered Questions { Data Structures }

What is the difference between Array and LinkedList?

775

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

703

Why hashmap is faster than hashset?

715

What is linked list with example?

673

What is java priority queue?

723

How can you correct these errors?

700

What is a treemap chart?

634

Which is the parent class of linkedlist class?

648

What are the different data structures?

704

Can you provide some implementation of a dictionary having large number of words?

903

Why is quicksort better than mergesort?

690

Discuss the difference between a stack and an Array?

714

How are the elements of a 2d array are stored in the memory?

803

What is shell sort in data structure?

669

How do you find the index of an element in an arraylist?

638

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