What is a data structure? What are the types of data structures?
Define double linked list?
What is the logic to reverse the array?
What is array sort?
Which is faster hashmap or treemap?
How does variable declaration affect memory allocation?
How does the size of arraylist increases dynamically?
Explain Stack
Which algorithm is used in collections sort method?
What is definition list?
State the difference between arrays and linked lists?
What is stack algorithm?
Is an arraylist a vector?
What is difference between list and array list?
Is arraylist a class?