Why is hashmap used?
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How does selection sort work?
What is an ordered map?
Explain the difference between a list and array.
How to reverse a singly linked list?
What is a dequeue?
Explain what is the bucket size, when the overlapping and collision occur at same time?
What is array define its types?
State the advantages of using postfix notations?
What is difference between capacity and size of arraylist?
How would you sort a linked list?
Explain what are the notations used in evaluation of arithmetic expressions using prefix and postfix forms?
How do you sort an array in descending order?