What is the use of placement new?
Does hashtable allow null values?
How many times is merge sort called?
What is a Breadth First Search? Give a few of its applications.
Can we make hashmap synchronized?
How many types of linked list exist?
What is stack in data structure with the example?
What is array define its types?
Define binary tree insertion.
Is arraylist reference type?
Parenthesis is never required in postfix or prefix expressions, why?
How do you empty an arraylist?
Does list maintain insertion order?
Does treemap sort automatically?
What is homogeneous array?