Tell me about circular linked list?
What is the use of isEmpty() member methods?
What is inserting in data structure?
What is difference between hashset and linkedhashset?
What is different between array and list?
Does linkedhashset allow null values?
Differentiate between hashset and hashmap.
What are red-black trees?
What do you mean by free pool?
Are collections thread safe?
Can arraylist hold duplicates?
Why do we use data structures?
Is any implicit arguments are passed to a function when it is called?