1. Suppose you have a meeting room which can hold multiple meetings and the smalled duration of meeting can be 30 mins. Calculate the total hours of over lapping meetings.
For example, there was a meeting between 8:00 Am - 11:AM , another one at 9:30 AM - 10:00 AM
and 9:30 AM and 10:30 AM, so the answer will be 2 hours and 30 mins of common meeting time.
(HINT: think of a good collection data structure to use)
2. Write a program to sort and array of Integers using Collection classes (You dont have to write the sorting program, use exiting classes function in Collection to sort)