What is the technique adopted to create an immutable class?

In order to create an immutable class, follow the below steps:

• Pronounce the class as last so it cannot be expanded.
• Make all fields private with the goal that immediate access is not permitted.
• Try not to give setter strategies to factors
• Make every changeable field last with the goal that it is esteem can be doled out just once.
• Instate every one of the fields by means of a constructor playing out a profound duplicate.
• Perform cloning of articles in the getter techniques to restore a duplicate instead of restoring the genuine item reference.