public static void shuffle(Object[] obj){} It shuffles an array in nlog(n) time using recursion. You must not use helper methods or change parameters. Assume calls to the Random library happen in constant time. It should be possible for any element to re-position to any other position. After completion, explain

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Implement the following method in Java:
public static void shuffle(Object[] obj){}
It shuffles an array in nlog(n) time using recursion. You must not use helper methods or change parameters.
Assume calls to the Random library happen in constant time. It should be possible for any element to re-position to any other position.
After completion, explain why your algorithm runs in nlog(n) time.
Hint: Think about merge sort.

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