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

Data Structures Interview Questions

Questions Answers Views Company eMail

How can we reverse the order in the treemap?

872

Which interfaces are implemented by abstractqueue?

914

Can we add duplicate keys in a hashmap?

891

What is comparable interface?

945

What is a property class?

999

Which interfaces are implemented by hashmap?

967

Explain set interface?

1064

What is the Difference between sax and dom parser?

1050

Can we create a null as a key for a map collection?

916

Which interfaces are implemented by printerstatereasons?

896

What are the advantages and disadvantages of copyonwritearraylist?

1116

Difference between arraylist and linkedlist?

1012

Which interfaces are implemented by concurrentskiplistset?

853

Is it legal to initialize list like this?

954

Which is the parent class of sortedset class?

1005

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Un-Answered Questions { Data Structures }

What is the use of bubble sort?

869

Which is the parent class of abstractqueue class?

915

What are the types of sorting?

884

Which is the parent class of linkedlist class?

1005

Define splay tree?

960

What are the different data structures?

907

What is the default value of Array?

1117

Define the term “percolate up”?

944

Why is quicksort unstable?

940

Does hashset guarantee order?

923

Which is faster arraylist or linked list?

907

Is selection sort greedy?

876

What the principle of quick sort and its complexity?

985

How would you reverse the characters of an array?

923

What is the difference between the hash table and hash map?

994

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