Answered: Is the following implementation a…

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

Section: Chapter Questions

Problem 1PE

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Question

Is the following implementation a correct implementation of Singleton Pattern?

public class MySingleton { private static MySingleton uniqueInstance; public MySingleton() { } private static MySingleton getInstance() { if (uniqueInstance == null) { uniqueInstance = new MySingleton(); } return uniqueInstance; } }

True

False

Expert Solution

Step 1: Issues with the Provided Singleton Implementation

The implementation you provided is not a correct implementation of the Singleton Pattern. While it does attempt to create a single instance of the MySingleton class, it has some issues. The getInstance method should be public, but it is currently private, which means you cannot access it from outside the class to obtain the instance.

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