How can I create a Sudoku program with a grid and automatic hints in a Java program.  For example.

What are some of the benefits of using an ADT bag in Java? Provide an example that illustrates when using a bag would be useful. In your answer, specifically think of and give a real-life scenario where: The Bag ADT can be useful Using Bag ADT is better than the alternatives Please and thank you

Write one code for it.  Write a Comparator in Java to compare two employees based upon their name, departments and age?.

The birthday paradox says that the probability that two people in a room will have the same birthday is more than half, provided n, the number of people in the room, is more than 23. This property is not really a paradox, but many people find it surprising. Design a Java program that can test this paradox by a series of experiments on randomly generated birthdays, which test this paradox for n = 5, 10, 15, 20, ..., 100.