Do sets allow duplicates?
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How to get top two numbers from an array?
What are the types of Collision Resolution Techniques and the methods used in each of the type?
Define b-tree of order m?
What is comparator interface used for?
Is arraylist a class?
Tell me why can't constant values be used to define an array's initial size
How do you check if a stack is empty or not?
What is the complexity of arrays sort?
Differentiate between queue and deque.
What is a postfix expression?
Can arraylist store int?
Why might quick sort might be better than merge sort?