1. Introduction
In this article, We'll learn what is singleton pattern is in java and how to implement it. You will learn various ways to create singleton objects. This is the only design pattern that is used by every application in the software industry and also used extensively in java API such as Spring, apache or spark, etc. A question from the design pattern is a must in the interview and many questions come from this topic. This is my favourite interview question that I ask software developers. This question will check to understand many areas of core java such as private access modifier, static members, cloning, multithreading, deep cloning, serialization and deserialization and reflection api.
In this post, You will learn the frequently asked question on the singleton design pattern. If you are preparing for interviews, this will give you a clear picture of the singleton pattern.