Design Pattern Singleton Pattern - Design Patterns

What is Design Pattern Singleton Pattern?

Singleton pattern is one of the simplest design patterns in Java. This kind of design pattern comes under creational pattern as this pattern provides one of the best ways to form an object.

This pattern involves a particular class which is in charge to generate an article while making sure that only single object gets shaped. This class provides a way to admission its only object which can be access directly without need to instantiate the item of the class.

Implementation

We're going to create a Single Object class. Single Object class have its constructor as classified and have a standing example of it.

Single Object class provides a standing method to get its still instance to outside world. SingletonPatternDemo, our demo class will use Single entity class to get a Single Object entity.
singleton_pattern_uml_diagram

Step 1

Create a Singleton Class.

SingleObject.java

Step 2

Find the only object from the singleton class.

SingletonPatternDemo.java

Step 3

Prove the output.

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