Differentiate between an array and an arraylist.
Will hashmap allow null keys?
How do stacks work?
How does selection sort work?
Why null is not allowed in treemap?
State the rules to be followed during infix to postfix conversions?
Explain the implementation of an AVL tree and Binary tree.
What is the default size of arraylist?
In tree construction which is the suitable efficient data structure? (a) Array (b) Linked list (c) Stack (d) Queue (e) none
What is the use of data structure in real life?
What do u mean by data type?
How do you find the complexity of a selection sort?
Name the areas in which you can apply data structures extensively?