Why do we use hashset?
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Write a program using mergesort technique.
Describe the merge sort principle and what will be its time complexity?
What is collections singletonlist?
What do you mean by level of the tree?
How null key is handled in hashmap?
What are the advantages and disadvantages of copyonwritearraylist?
Does arraylist maintain insertion order?
How would you check if a binary tree is BST or not ? Write a program.
In Data Structure, write output of given program.
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A list is ordered from smaller to largest when a sort is called. Which sort would take the longest time to execute?
Why arraylist is not efficient for manipulation?
How do you make a bubble chart with 3 variables?