Does arraylist contain duplicates?
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Why do we use trees in data structures?
Differentiate between arraylist and vector.
Name the areas in which you can apply data structures extensively?
What is the difference between hashmap and linkedhashmap?
How do you sort an array by value?
Why do we need searching algorithms?
Which is better array or linked list?
Differentiate null and void?
Whether Linked List is linear or Non-linear data structure?
What data structure does a binary tree degenerate?
How do you sort in ascending order in arraylist?
What the principle of quick sort and its complexity?