Is array a data type?
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Which sort algorithm is best?
How does quick sort work?
If we try to add duplicate key to the hashmap, what will happen?
What is hash value of a string?
What is garbage collection in data structure?
What things you would care about to improve the performance of application if its identified that its db communication that needs to be improved?
Define an algorithm. What are the types of algorithms?
Can you sort a string?
Are collections thread safe?
Can arraylist store objects?
In what order the elements of a hashset are retrieved?
List out the disadvantages of using a linked list?