please only do the random object for #3a and use java language

thank you!!!

Mergesort - Quicksort 1. Use Mergesort Algorithm to sort the following list. Show the actions step by step. 121 35 189 56 150 12 9 24 2. Use Quicksort Algorithm to sort the following list. Show the actions step by step. 101 25 170 50 150 11 19 84 3. Write a program using a language of your choice that compares Mergesort and Quicksort algorithms. Your program should use a. A random object to generate the input b. A timer object for the speed Note: Your ouput should consist of: - The original list (array) - The sorted array - The time it takes to execute each sorting algorithm