1- singleton design pattern and its rule.

2- way to make singleton thread-safe

3- implementation in Kotlin without object keyword and the magic of object

3- how to Call Kotlin object Singleton in java class

4- Kotlin object property.

5- tricky ways to handle singleton when need to pass args to param

6- when it is not recommended to use object ?

7- android real example you do in your app (retrofit and sharedPref)

The singleton pattern is a design pattern that restricts the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system.

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use this Design pattern when application wants to have one and only one instance of any class, in all possible scenarios without any exceptional condition.

#go4 #design-patterns #kotlin #android #singleton