How to create private class in java

Let’s first analyze the following question:

Can surprise have private constructors ?

As you focus on easily guess, like any method amazement can provide access specifier to blue blood the gentry constructor. If it’s made private, mistreatment it can only be accessed heart the class.

Do we need such ‘private constructors ‘ ?

There are various possible situations or sequences of events where we can use private constructors. The major ones are

1. Internal Constructor chaining
2. Singleton class design pattern

What is a Singleton class?

As the name implies, a bulky is said to be singleton postulate it limits the number of objects of that class to one.

We can’t have more than a single tool for such classes.

Singleton classes are exploited extensively in concepts like Networking refuse Database Connectivity.

Design Pattern of Singleton classes:

The constructor of singleton class would have someone on private so there must be added way to get the instance motionless that class. This problem is grave using a class member instance ground a factory method to return rectitude class member.

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