Name two algorithms two find minimum spanning tree?
How to get top two numbers from an array?
What is harvesting in agriculture?
Which is faster hashmap or concurrenthashmap?
How do you balance a tree?
How will you check the validity of an expression containing nested parentheses?
What is the difference between Strings and Arrays?
Tell me the difference between structure and array?
Is hashmap keyset ordered?
What is long data type?
Does set allow null values?
No. of possible ordered trees with n nodes ? Please give formula (if any).
What sorting algorithm does arrays sort use?