Does arraylist allow null values?
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What is a node in it?
What is a Stack? Explain with example?
What is quick sort example?
What is data structure in programming language?
Why you need a data structure?
Which is the parent class of hashmap class?
In Data Structure, write output of given program.
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What is data structure and its classification?
Differentiate between the singly linked list and doubly linked list.
Why is hashmap faster than arraylist?
Is array immutable?
Why is quicksort better than mergesort?