What happens if we try to insert duplicate key in hashmap?
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What do you mean by external sorting?
Why do we use data structures?
Parenthesis is never required in postfix or prefix expressions, why?
Explain what are the types of collision resolution techniques and the methods used in each of the type?
State the advantages of using infix notations?
Can a class have a constructor?
How do you initialize an arraylist?
What is a multiset table?
Which sorting technique is faster?
Which is the slowest sorting algorithm?
Differentiate between comparable and comparator.
What are the advantages of linked list?