Define in brief an array. What are the types of array operations?
Is arraylist heterogeneous?
What is entryset in hashmap?
Why do we use different types of data structures?
Is a hash table a map?
What is long data type?
Define an algorithm.
What do you mean by back edge?
Are collections thread safe?
How to find 3rd element from end in a linked list in one pass?
In the given binary tree, using array you can store the node 4 at which location? 1 2 3 - - 4 - - 5
What do you mean by sorting?
applications of linked lists and mostly used linked list?