Java's default constructor lets developers create instances of classes when an explicitly defined constructor does not exist. Here's how it works.

you cannot create a singleton class for a object that doesn't have a singleton class if the object is frozen. Actually one can, yes it's surprising but I think the idea is the singleton class is ...

Take advantage of the Singleton design pattern to create classes that can have only one instance throughout the lifetime of the application ...

Sometimes, we need access of some object /data/ variable globally throughout the app. in that case, creating a singleton class which can be accessed through out the app is helpful. app delegate is a ...

The Singleton pattern is deceptively simple, even and especially for Java developers. In this classic JavaWorld article, David Geary demonstrates how Java developers implement singletons, with ...