How to create multiple instance of singleton class in java

This is the simple example for Singleton class in java. By calling Singleton.getInstance() you can get the instance of this Singleton class. Here instance is private static and constructor is private so only one object is available per JVM. public class Singleton { private static Singleton instance = new Singleton (); private Singleton { } public static Singleton

We can create multiple instances of singleton classes by breaking the principle of singleton such as multithreading, Serialization, cloning, Reflection API. For real example, you refer below link which was written by me. Java Concept Book – Google Drive. If you facing any issue while opening the link. Then let me know.

java – How to create multiple instances for Singleton …

That is the getInstance method is synchronized. But without changing the design pattern is there a way to create multiple instances of the Singleton class. Because changing the Singleton pattern will take lot of architectural changes. Please advice a way to create multiple instances. Please help in Java.

To create a singleton class, we must follow the steps, given below: 1. Ensure that only one instance of the class exists. 2. Provide global access to that instance by. Declaring all constructors of the class to be private. Providing a static method that returns a …

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How to get the instance of singleton class in Java?

This is the simple example for Singleton class in java. By calling Singleton.getInstance () you can get the instance of this Singleton class. Here instance is private static and constructor is private so only one object is available per JVM.

Can you gain multiple instances of the same singleton instance?

This way you gain multiple instances of the same singleton instance – though this is a contradiction of the singleton pattern! – Roman Vottner Dec 26 ’13 at 17:29 Add a comment | 4 Answers 4 ActiveOldestVotes 6 Singleton patten means only one instance is allowed.

Is there a way to create multiple instances of a class?

So there is no question of creating multiple instances. Though there are some hacks and workarounds like Serializing the Object and De Serializingit back or using different Class loadersbut again it violates the basic principle why Singleton pattern is created for. Share Follow answered Dec 26 ’13 at 15:10

What is a singleton class?

In object-oriented programming, a singleton class is a class that can have only one object (an instance of the class) at a time.

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What is Singleton Class in Java | Singleton Design Pattern Part 1 Video Answer

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