The Geek's Blog

Let's start with our journey of Adobe Experience Manager project development.
I am using AEM 6.3, Java 1.8 and Maven 3.2.
Follow below steps and try to replicate the same at your end. Let know of any issues if you face in the comment section.

This pattern is used when it must be decided at run time which one of several compatible classes is to be instantiated.
For example, the abstract Collator class's getInstance() method returns a collation object that is appropriate for the default locale, as determined by java.util.Locale.getDefault():...

Lazy Initialization:-The instantiation of an object can be delayed until it is actually needed.
Usage: This especially beneficial when the constructor is doing a costly job like, accessing a remote database.
Example:

The pattern is an organised way of solving some specific class of problems.
These patterns come in to the picture at analysis and high-level-design phase.
The first step of applying one pattern to the code base is first to understand the find the vector of change in the code base....